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What is Potassium?

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Periodic table of chemical elements is an arrangement of elements in the form of rows (period) and columns (Group). They are arranged with respect to their atomic numbers and similar characteristics. Potassium In Periodic Table </>
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It’s an atomic symbol of Potassium which helps identifying it in periodic table. Symbol
K
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Group number of Metals is vertical column number in periodic table. Group Number
1
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17
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Period number is a horizontal row number of Metals in periodic table. Period Number
4
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Periodic table is subdivided into 4 blocks i.e p-block, d-block, s-block and f-block. Block
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The s-block is on the left side of the periodic table that includes elements from the first two columns, the alkali metals (group 1) and alkaline earth metals (group 2), plus helium.s block
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Metals belongs to the subcategory of periodic table. Different element families exist in this table. For example, Alkali metals, Transition metals, alkaline earth metals, post-transition metals, Lanthanide & Actinide series metals. Element Family
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All alkali metals are placed under group number 1 and s-block of periodic table. These metals are highly reactive and are found in ores of other metals and minerals. Alkali metals can be easily distinguished from others as these metals have only 1 electronAlkali
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The Chemical Abstract Service (CAS) is part of the American Chemical Society and maintains a database of chemical compounds and sequences. and each element has its unique identification number known as CAS number. CAS Number
7440097
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70
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The crystallographic or Fedorov groups, and represent a description of the symmetry of the crystal. Space Group Name
Im_ 3m
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The crystallographic or Fedorov groups, and represent a description of thesymmetry of the crystal. Space Group Number
229.00
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📊
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1
+
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Want to know Interesting and lesser known facts about Potassium, then you are at the right place. Facts about Potassium </>
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Bunch of Interesting facts about Potassium. Interesting Facts
  • In the list of most abundant element Potassium is ranked 7th.
  • Potassium can easily be sliced (chopped) down using knife.
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List of different sources of Potassium. Sources
  • Found in Minerals
  • Mining
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Lets check out the facts about history of Potassium. History of Potassium
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You might be wondering who discovered Potassium metal? Who Discovered Potassium
Humphry Davy
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Potassium metal’s discovery period. Because we think most of the metals are discovered by our ant-sisters but is it really true? Let’s Find out then! Discovery
In 1807
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Abundance percentage of Potassium metal at various places. This will give you an idea about its Abundance levels. Abundance of Potassium
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Abundance percentage of Potassium in Universe. Abundance In Universe
0.00 %
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9
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Abundance percentage of Potassium in Sun. Abundance In Sun
0.00 %
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10
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Abundance percentage of Potassium in Meteorites. Abundance In Meteorites
0.07 %
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9
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Abundance percentage of Potassium in Earth’s Crust. Abundance In Earth’s Crust
1.50 %
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6
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Abundance percentage of Potassium in Oceans. Abundance In Oceans
0.04 %
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3
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Abundance percentage of Potassium in Humans. Abundance In Humans
0.20 %
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2
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Different types of Potassium Uses and benefits are listed down below. Uses of Potassium </>
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Uses & Benefits Uses & Benefits
  • Potassium’s compounds are in high demand for their application in Fertilizer manufacturing.
  • Potassium carbonate is used in glass manufacturing and Potassium carbonate in manufacturing detergent and body wash.
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List of industrial uses of Potassium. Industrial Uses
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    Metals are usually used in ammunition industry. This metal is used while making armors and other weapons used in wars.Ammunition Industry
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    This metal is used in chemical industry where it is used making different chemical compounds or elements and alloys.Chemical Industry
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List of medical uses of Potassium. Medical Uses
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This metal is used in the pharmaceutical industry and helps to develops, produces, and markets drugs or pharmaceuticals for use as medications.Pharmaceutical Industry
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List of lesser known uses of Potassium metal. Other Uses
NA
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Biological properties of Potassium. Biological Properties
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Toxicity level of Potassium metal. Toxicity
Toxic
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Whether Potassium metal is present in the Human Body? Present in Human Body
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What amount of Potassium is present in human blood normally? In Blood
1,620.00 Blood/mg dm-3
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2
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What amount of Potassium is present in human bone normally? In Bone
2,100.00 p.p.m.
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3
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Physical properties or characteristics of Potassium. These properties are mostly related to its appearance and surface. Physical Properties of Potassium </>
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The temperature at which Metals metal starts melting. Melting Point
63.65 °C
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77
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The temperature at which Metals starts boiling. Not literally it is a temperature point at which it converts to vapors. Boiling Point
774.00 °C
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72
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Physical appearance or look and feel of Potassium is described here. Appearance of Potassium
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Physical state or phase of Potassium at room temperature. Physical State
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At room temperature almost all metal are found in solid physical sate but only the mercury element found in liquid state.Solid
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One might wonder, what is the exact color of Potassium metal in nature? Color
Silvery Gray
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Metals generally exhibit a metallic luster! Lets check out the look and feel of Potassium metal. Luster
NA
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Hardness of Potassium which measures how resistant this metals is to various kinds of permanent shape change when a compressive force is applied. Hardness of Potassium
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Mohs Hardness of Potassium is a scale for measuring its hardness. Mohs Hardness
0.40
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23
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Brinell Hardness of Potassium is a scale for measuring their hardness. Brinell Hardness
0.36 MPa
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54
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The speed of sound is the distance traveled per unit time by a sound wave propagating through an elastic medium. Speed of Sound
2,000.00 m/s
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45
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Optical properties related to refractive index & the reflectivity parameters of Potassium. Optical Properties
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Allotropes are different structural modifications of an metals; the atoms of the metals are bonded together with the help of different crystal structure. Allotropes
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There are usually 3 tyopes of allotropes, out of these alpha allotropes of this metal are listed here. α Allotropes
Not Available
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There are usually 3 tyopes of allotropes, out of these beta allotropes of this metal are listed here. β Allotropes
Not Available
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There are usually 3 tyopes of allotropes, out of these gamma allotropes of this metal are listed here. γ Allotropes
Not Available
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Chemical properties or characteristics of Potassium are listed here. Chemical Properties of Potassium </>
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Chemical formula or atomic symbol of Potassium. This symbol is very useful while mentioning chemical reactions and equations of this metals. Chemical Formula
K
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Isotopes of Potassium are its variants, which differ in neutron number present in the nucleus. Isotopes of Potassium
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The total number of known Isotopes of this metal. Known Isotopes
20
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19
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Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. Electronegativity
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Pauling Electronegativity is very popular scale to measure Electronegativity of metals. Pauling Electronegativity
0.82
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51
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Sanderson Electronegativity is another scale to measure the Electronegativity of metals. Sanderson Electronegativity
0.45
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31
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Allred Rochow Electronegativity is very famous scale to measure Electronegativity. Allred Rochow Electronegativity
0.91
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39
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Mulliken-Jaffe Electronegativity is very famous scale to measure Electronegativity. Mulliken-Jaffe Electronegativity
0.73
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23
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Allen Electronegativity is very famous scale to measure Electronegativity. Allen Electronegativity
0.73
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45
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Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. Opposite of that is known as Electropositivity. Electropositivity
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Pauling Electropositivity is scale used to mesure Electropositivity of Potassium. Pauling Electropositivity
3.18
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3
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The ionization energy (IE) or the ionization potential is qualitatively defined as the amount of energy required to remove the most loosely bound electron of an isolated gaseous atom to form a cation. Ionization Energies
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1st energy level of Potassium. 1st Energy Level
418.80 kJ/mol
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87
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2nd energy level of Potassium. 2nd Energy Level
3,052.00 kJ/mol
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5
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3rd energy level of Potassium. 3rd Energy Level
4,420.00 kJ/mol
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8
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4th energy level of Potassium. 4th Energy Level
5,877.00 kJ/mol
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9
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5th energy level of Potassium. 5th Energy Level
7,975.00 kJ/mol
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8
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6th energy level of Potassium. 6th Energy Level
9,590.00 kJ/mol
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13
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7th energy level of Potassium. 7th Energy level
11,343.00 kJ/mol
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17
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8th energy level of Potassium. 8th Energy Level
14,944.00 kJ/mol
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13
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9th energy level of Potassium. 9th Energy Level
16,963.70 kJ/mol
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15
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10th energy level of Potassium. 10th Energy Level
48,610.00 kJ/mol
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3
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11th energy level of Potassium. 11th Energy Level
54,490.00 kJ/mol
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4
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12th energy level of Potassium. 12th Energy Level
60,730.00 kJ/mol
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5
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13th energy level of Potassium. 13th Energy Level
68,950.00 kJ/mol
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5
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14th energy level of Potassium. 14th Energy Level
75,900.00 kJ/mol
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5
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15th energy level of Potassium. 15th Energy Level
83,080.00 kJ/mol
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6
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16th energy level of Potassium. 16th Energy Level
93,400.00 kJ/mol
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7
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17th energy level of Potassium. 17th Energy Level
99,710.00 kJ/mol
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8
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18th energy level of Potassium. 18th Energy Level
444,880.00 kJ/mol
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1
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19th energy level of Potassium. 19th Energy Level
476,063.00 kJ/mol
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2
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The electrochemical equivalent of a Potassium element is the mass of this element (in grams) transported by 1 coulomb of electricity. The electrochemical equivalent of an element is measured with a voltameter. Electrochemical Equivalent
1.46 g/amp-hr
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47
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Electron work function of Potassium is the minimum thermodynamic work (i.e. energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface. Electron Work Function
2.30 eV
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44
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List of all chemical properties/characteristics/behavior of Potassium. Other Chemical Properties
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Stable metals are non radioactive metals and have zero valence electrons in the outer shell.Chemical Stability, 
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Flammable metals have ability to burn or ignite, causing fire or combustion.Flammability, 
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Ionization is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.Ionization, 
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Solubility is a chemical property referring to the ability for a given substance, the solute, to dissolve in a solvent.Solubility
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Detailed information about the atomic structure of Potassium. Atomic Properties of Potassium </>
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Atomic number of Metals is the number of protons present in the atom of Metals metal. Atomic Number
19
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87
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The electron configuration of Potassium is the distribution of its electrons in atom or molecule in atomic or molecular orbitals. Electron Configuration
[Ar] 4s1
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In mineralogy and crystallography, a crystal structure is a unique arrangement of atoms in a crystal. There are different types of Crystal structure exhibited by metals. Crystal Structure
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BCC is a basis type of cubic crystal structure. In crystallography, the cubic crystals structure is a crystal system where the unit cell has a cube shaped structure. This is one of the simplest crystal structure found in crystals of metal.Body Centered Cubic (BCC)
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Images of crystal lattice of Potassium. It is a symmetrical three-dimensional arrangement of atoms inside a crystal. Crystal Lattice
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Information about number of Electrons, protons and neutrons present inside the atom of Potassium Metal. Atom of Potassium
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Number of protons present in the nucleus of Potassium. Number of Protons
19
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86
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Number of neutrons present in the nucleus of Potassium. Number of Neutrons
20
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65
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Number of Electrons present inside the atom of Potassium. Number of Electrons
19
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86
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Radius of an Atom of Potassium. Different radius measures are listed below. Radius of an Atom
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The atomic radius of Potassium can be defined as a measure of the size of its atoms. Atomic Radius
227.00 pm
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3
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The covalent radius of Potassium can be defined as a measure of the size of its atoms. Covalent Radius
203.00 pm
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9
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The Van der Waals Radius of Potassium can be defined as a measure of the size of its atoms. Van der Waals Radius
275.00 pm
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5
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The atomic weight is the average of the isotope weights weighted for the isotope distribution and expressed on the 12C scale. Atomic Weight
39.10 amu
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81
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Atomic Volume of Potassium means volume of its atoms. Atomic Volume
45.46 cm3/mol
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3
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It will let know the previous and next atomic number of Potassium. Adjacent Atomic Numbers
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Previous atomic number metal. For eg. If the atomic number of Gold is 79 then the previous atomic number belongs to Platinum which is 78. Previous Element
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Next atomic number metal. For eg. if the atomic number of Gold is 79 then the next atomic number belongs to Mercury which is 80. Next Element
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The valence electron is an electron that is associated with an atom, and that can participate in the formation of a chemical bond. Valence Electron Potential
10.40 (-eV)
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63
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The lattice constant, or lattice parameter, refers to the physical dimension of unit cells in a crystal lattice. Lattice Constant
532.80 pm
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12
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The lengths of the edges of a unit cell and the angles between them are called the Lattice angle. Lattice Angles
π/2, π/2, π/2
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It’s a ratio of Lattice constant by Lattice angle. Lattice C/A Ratio
Not Available
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List of different mechanical properties of Potassium metal. These properties test the mechanical strength of this metal. Mechanical Properties of Potassium </>
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The density of Potassium metal is a relationship between the mass of the Potassium atom and how much space it takes up (volume). Density of Potassium
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Potassium density at room temperature. Density At Room Temperature
0.86 g/cm3
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83
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Potassium density When at liquid state (at m.p.). Density When Liquid (at m.p.)
0.83 g/cm3
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59
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Tensile strength is a measurement of the force required to pull something such as rope, wire, or a structural beam to the point where it breaks. Tensile Strength
Not Available
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The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. Viscosity
Not Available
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Vapor pressure or equilibrium vapor pressure is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) at a given temperature in a closed system. Vapor Pressure of Potassium
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How much it will compress under a given amount of external pressure, that can be found with the help of its elasticity modulus. Elasticity properties
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Shear Modulus of Potassium is a measure of its elastic properties. Shear Modulus
1.30 GPa
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52
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Bulk Modulus of Potassium is a measure of its elastic properties. Bulk Modulus
3.10 GPa
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48
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Young’s Modulus of Potassium is a measure of its elastic properties. Young’s Modulus
3.53 GPa
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56
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Poisson’s ratio, named after Siméon Poisson, is the negative ratio of transverse to axial strain. Poisson Ratio
Not Available
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Whether Potassium exhibits properties like ductility , malleability, weldability, sectility, etc. Other Mechanical Properties
NA
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List of different magnetic properties and characteristics of Potassium. Magnetic Properties of Potassium </>
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Different Magnetic significance of Potassium. Magnetic Characteristics of Potassium
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Specific gravity is the ratio of the density of a substance to the density of a reference substance. Specific Gravity
0.86
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69
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Magnetic Ordering of Potassium defines its magnetic orientation (nature) and magnetic type. Magnetic Ordering
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Paramagnetic metals are slightly attracted by magnet, but they can’t retain the magnetic effect once they are removed from the magnetic field.Paramagnetic
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List of different electrical properties and significance of Potassium. Electrical Properties
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Electrical property or nature of Potassium defines its electrical orientation and electrical type. Electrical Property
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Conductor metals have very low resistance to electric currents. They can easily conduct electric current through them.Conductor
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Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) is an intrinsic property that quantifies how strongly a given material opposes the flow of electric current. Resistivity
72.00 nΩ·m
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37
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Electrical conductivity is the measure of a material’s ability to accommodate the transport of an electric charge. Electrical Conductivity
0.14 106/cm Ω
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14
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Electron affinity is defined as the change in energy (in kJ/mole) of a neutral atom (in the gaseous phase) when an electron is added to the atom to form a negative ion. Electron Affinity
48.40 kJ/mol
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22
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Thermal characteristic and the concepts thermodynamics of Potassium. Thermal Properties of Potassium </>
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The specific heat is the amount of heat per unit mass required to raise the temperature by one degree Celsius. Specific Heat
0.75 J/(kg K)
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6
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The molar heat capacity is the heat capacity per unit amount (SI unit: mole) of a pure substance. Molar Heat Capacity
29.60 J/mol·K
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6
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Thermal conductivity (often denoted k, λ, or κ) is the property of a material to conduct heat. Thermal Conductivity
102.50 W/m·K
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15
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The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied. Critical Temperature
2,223.00 K
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3
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Thermal expansion is the tendency of matter to change in shape, area, and volume in response to a change in temperature, through heat transfer. Thermal Expansion
83.30 µm/(m·K)
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3
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Enthalpy is the sum of the internal energy and the product of pressure and volume given by the equation. Enthalpy of Potassium
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The enthalpy of vaporization, also known as the heat of vaporization, is the enthalpy change required to transform a given quantity of a substance from a liquid into a gas at a given pressure. Enthalpy of Vaporization
77.50 kJ/mol
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55
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The enthalpy of fusion also known as (latent) heat of fusion is the change in enthalpy resulting from heating a given quantity of a substance to change its state from a solid to a liquid. The temperature at which this occurs is the melting point. Enthalpy of Fusion
2.32 kJ/mol
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60
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The enthalpy of atomization (also atomisation in British spelling) is the enthalpy change that accompanies the total separation of all atoms in a chemical substance (either a chemical element or a chemical compound). Enthalpy of Atomization
89.50 kJ/mol
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58
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The standard molar entropy is the entropy content of one mole of substance, under standard conditions (not standard temperature and pressure). Standard Molar Entropy
64.70 J/mol.K
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18
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Potassium Metal

Metals have been an inseparable component of major civilizations since centuries. Although metals were utilized since time unknown, researchers put considerable efforts in giving them appropriate names and defining their different properties and characteristics. This nomenclature process helped in arranging these metals in a well-organized fashion, known as the periodic table. In this periodic table, Potassium metal is also represented by the symbol K. This atomic symbol of Potassium is useful in indicating the position of metal K in the periodic table. If you are curious-headed or a science-geek, the common questions about metals are What is Potassium? What are its physical, chemical, mechanical, electrical and thermal properties? Find all the relevant facts about K metals in the following sections.

Periodic Table of Potassium

Periodic table of Potassium comments over its position in the periodic table, on the basis of parameters like group number, period row, atomic number and orbital block. The metals which have electrons falling in the same sub-shell are grouped under the same block corresponding to its respective orbital. Potassium metal belongs to Alkali Metals category of the periodic table. Metals down a group have same valency while metals across a period have the same number of shells. Its group number (column number) is 1, whereas its period number is 4. It is placed under s block of the periodic table & is one of the prominent s block elements.

Potassium Metal Properties

Metals have certain properties by which they can be distinguished from one another. Magnetic and Atomic Structure of Potassium are few widely searched properties. Using the comparison facility, you can not only view the individual metal properties, but also compare the properties of multiple metals to get a thorough comparative analysis between the metals of your choice. Atomic number is a basic building block for the arrangement of metals in the periodic table. Atomic number of Potassium is 19 and its atomic weight is 39.10 amu. The electrons in its atom are arranged in orbitals as [Ar] 4s1. Nuclear particles in Potassium atom are 20 neutrons, 19 protons and 19 electrons.

Physical and Chemical Characteristics of Potassium

Physical and chemical characteristics of Potassium are two major criteria while comparing this metal with other metals. Physical Properties of Potassium include its external appearance, shininess at surface, color, etc. Properties like density, viscosity, melting and boiling point are also covered in this section. At room temperature, this metal is a Silvery Gray Solid. It starts melting at 63.65 °C. All these Potassium metal properties together define what is Potassium?

Modern Periodic Table

Modern Periodic Table
Group →

Period ↓

1

2

3

4

5

6

7

1

H

2

3

La-Lu
Ac-Lr

4

5

6

7

8

9

10

11

12

13

B

14

C
Si
Ge

15

N
P
As
Sb

16

O
S
Se
Te

17

F
Cl
Br
I
At

18

He
Ne
Ar
Kr
Xe
Rn
Og