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What is Lanthanum?

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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. Lanthanum In Periodic Table </>
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It’s an atomic symbol of Lanthanum which helps identifying it in periodic table. Symbol
La
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Group number of Metals is vertical column number in periodic table. Group Number
Not Available
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Period number is a horizontal row number of Metals in periodic table. Period Number
6
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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 f-block is in the center-left of a 32-column periodic table but in the footnoted appendage of 18-column tables. These elements are not generally considered as part of any group. They are often called inner transition metals.f 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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Total 15 metals are included in Lanthanide series from Lanthanum to Lutetium. Lanthanide series is located under f and d block of the periodic table.Lanthanide
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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
7439910
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87
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The crystallographic or Fedorov groups, and represent a description of the symmetry of the crystal. Space Group Name
P63/mmc
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The crystallographic or Fedorov groups, and represent a description of thesymmetry of the crystal. Space Group Number
194.00
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5
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Want to know Interesting and lesser known facts about Lanthanum, then you are at the right place. Facts about Lanthanum </>
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Bunch of Interesting facts about Lanthanum. Interesting Facts
  • Lanthanum metal is highly malleable, ductile and sectile.
  • If exposed to air Lanthanum metal oxidizes rapidly.
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List of different sources of Lanthanum. Sources
  • Found in Minerals
  • Mining
  • Ores of Minerals
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Lets check out the facts about history of Lanthanum. History of Lanthanum
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You might be wondering who discovered Lanthanum metal? Who Discovered Lanthanum
Carl Gustaf Mosander
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Lanthanum 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 1838
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Abundance percentage of Lanthanum metal at various places. This will give you an idea about its Abundance levels. Abundance of Lanthanum
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Abundance percentage of Lanthanum in Universe. Abundance In Universe
0.00 %
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22
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Abundance percentage of Lanthanum in Sun. Abundance In Sun
0.00 %
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26
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Abundance percentage of Lanthanum in Meteorites. Abundance In Meteorites
0.00 %
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32
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Abundance percentage of Lanthanum in Earth’s Crust. Abundance In Earth’s Crust
0.00 %
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19
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Abundance percentage of Lanthanum in Oceans. Abundance In Oceans
0.00 %
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29
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Different types of Lanthanum Uses and benefits are listed down below. Uses of Lanthanum </>
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Uses & Benefits Uses & Benefits
  • It has no commercial uses, but its alloys are in high demand. Lanthanum and Nickel alloy is used for the hydrogen gas storage.
  • The best-known use for mischmetal alloy of Lanthanum is; as a ‘flints’ for cigarette lighters.
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List of industrial uses of Lanthanum. Industrial Uses
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    As the metals are good conductor of heat and electricity. This metal is used in electrical industry where usually it is used in manufacturing different components, gadgets or wires, etc.Electrical Industry
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    Metals good are conductor of heat and electricity. Metals are used in electronic industry where usually it is used in manufacturing different components, gadgets or wires, etc.Electronic Industry
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List of medical uses of Lanthanum. Medical Uses
NA
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List of lesser known uses of Lanthanum metal. Other Uses
  • ?
    An alloy is a mixture of metals or a mixture of a metal and another element. Alloys of this metals are very useful.Alloys
  • ?
    Mirror ManufacturingMirror Manufacturing
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Biological properties of Lanthanum. Biological Properties
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Toxicity level of Lanthanum metal. Toxicity
Low Toxic
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Whether Lanthanum metal is present in the Human Body? Present in Human Body
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What amount of Lanthanum is present in human bone normally? In Bone
0.08 p.p.m.
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24
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Physical properties or characteristics of Lanthanum. These properties are mostly related to its appearance and surface. Physical Properties of Lanthanum </>
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The temperature at which Metals metal starts melting. Melting Point
920.00 °C
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49
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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
3,469.00 °C
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18
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Physical appearance or look and feel of Lanthanum is described here. Appearance of Lanthanum
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Physical state or phase of Lanthanum 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 Lanthanum metal in nature? Color
Silvery White
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Metals generally exhibit a metallic luster! Lets check out the look and feel of Lanthanum metal. Luster
NA
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Hardness of Lanthanum which measures how resistant this metals is to various kinds of permanent shape change when a compressive force is applied. Hardness of Lanthanum
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Mohs Hardness of Lanthanum is a scale for measuring its hardness. Mohs Hardness
2.50
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14
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Brinell Hardness of Lanthanum is a scale for measuring their hardness. Brinell Hardness
350.00 MPa
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30
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Vickers Hardness of Lanthanum is a scale for measuring their hardness. Vickers Hardness
360.00 MPa
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26
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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
2,475.00 m/s
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37
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Optical properties related to refractive index & the reflectivity parameters of Lanthanum. 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 Lanthanum are listed here. Chemical Properties of Lanthanum </>
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Chemical formula or atomic symbol of Lanthanum. This symbol is very useful while mentioning chemical reactions and equations of this metals. Chemical Formula
La
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Isotopes of Lanthanum are its variants, which differ in neutron number present in the nucleus. Isotopes of Lanthanum
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The total number of known Isotopes of this metal. Known Isotopes
31
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8
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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
1.10
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44
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Allred Rochow Electronegativity is very famous scale to measure Electronegativity. Allred Rochow Electronegativity
1.08
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31
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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 Lanthanum. Pauling Electropositivity
2.90
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10
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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 Lanthanum. 1st Energy Level
538.10 kJ/mol
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75
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2nd energy level of Lanthanum. 2nd Energy Level
1,067.00 kJ/mol
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76
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3rd energy level of Lanthanum. 3rd Energy Level
1,850.30 kJ/mol
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80
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4th energy level of Lanthanum. 4th Energy Level
4,819.00 kJ/mol
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22
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5th energy level of Lanthanum. 5th Energy Level
5,940.00 kJ/mol
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25
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The electrochemical equivalent of a Lanthanum 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
1.73 g/amp-hr
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42
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Electron work function of Lanthanum 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
3.50 eV
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31
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List of all chemical properties/characteristics/behavior of Lanthanum. Other Chemical Properties
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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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Radioactive metals emit particles and radiation from their nuclei. This process comes in the picture because their nuclei experience the intense conflict between two strong forces. This metal also have radioactive isotopes.Radioactive Isotopes, 
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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 Lanthanum. Atomic Properties of Lanthanum </>
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Atomic number of Metals is the number of protons present in the atom of Metals metal. Atomic Number
57
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59
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The electron configuration of Lanthanum is the distribution of its electrons in atom or molecule in atomic or molecular orbitals. Electron Configuration
[Xe] 5d2 6s2
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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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In crystallography, the hexagonal crystal structure and its double hexagonal crystal structure is one of the 7 crystal structure, The hexagonal lattice system consists of just one Bravais lattice type: the hexagonal shape.Double Hexagonal Close Packed (DHCP)
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Images of crystal lattice of Lanthanum. 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 Lanthanum Metal. Atom of Lanthanum
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Number of protons present in the nucleus of Lanthanum. Number of Protons
57
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58
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Number of neutrons present in the nucleus of Lanthanum. Number of Neutrons
82
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42
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Number of Electrons present inside the atom of Lanthanum. Number of Electrons
57
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58
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Radius of an Atom of Lanthanum. Different radius measures are listed below. Radius of an Atom
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The atomic radius of Lanthanum can be defined as a measure of the size of its atoms. Atomic Radius
187.00 pm
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8
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The covalent radius of Lanthanum can be defined as a measure of the size of its atoms. Covalent Radius
207.00 pm
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6
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The Van der Waals Radius of Lanthanum can be defined as a measure of the size of its atoms. Van der Waals Radius
240.00 pm
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13
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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
138.91 amu
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53
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Atomic Volume of Lanthanum means volume of its atoms. Atomic Volume
20.73 cm3/mol
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16
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It will let know the previous and next atomic number of Lanthanum. 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
40.71 (-eV)
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46
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The lattice constant, or lattice parameter, refers to the physical dimension of unit cells in a crystal lattice. Lattice Constant
377.20 pm
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28
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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, 2 π/3
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It’s a ratio of Lattice constant by Lattice angle. Lattice C/A Ratio
1.62
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2
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List of different mechanical properties of Lanthanum metal. These properties test the mechanical strength of this metal. Mechanical Properties of Lanthanum </>
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The density of Lanthanum metal is a relationship between the mass of the Lanthanum atom and how much space it takes up (volume). Density of Lanthanum
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Lanthanum density at room temperature. Density At Room Temperature
6.16 g/cm3
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65
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Lanthanum density When at liquid state (at m.p.). Density When Liquid (at m.p.)
5.94 g/cm3
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44
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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 Lanthanum
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Vapor Pressure of Lanthanum at temperature 2000 K. Vapor Pressure at 2000 K
0.98 (Pa)
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15
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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 Lanthanum is a measure of its elastic properties. Shear Modulus
14.30 GPa
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40
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Bulk Modulus of Lanthanum is a measure of its elastic properties. Bulk Modulus
27.90 GPa
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41
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Young’s Modulus of Lanthanum is a measure of its elastic properties. Young’s Modulus
36.60 GPa
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42
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Poisson’s ratio, named after Siméon Poisson, is the negative ratio of transverse to axial strain. Poisson Ratio
0.28
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17
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Whether Lanthanum exhibits properties like ductility , malleability, weldability, sectility, etc. Other Mechanical Properties
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Ductility of metals defines their ability to deform under tensile stress; this is often characterized by the metals ability to be stretched into a wire.Ductile
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List of different magnetic properties and characteristics of Lanthanum. Magnetic Properties of Lanthanum </>
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Different Magnetic significance of Lanthanum. Magnetic Characteristics of Lanthanum
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Specific gravity is the ratio of the density of a substance to the density of a reference substance. Specific Gravity
6.17
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52
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Magnetic Ordering of Lanthanum 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 Lanthanum. Electrical Properties
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Electrical property or nature of Lanthanum 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
615.00 nΩ·m
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7
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Electrical conductivity is the measure of a material’s ability to accommodate the transport of an electric charge. Electrical Conductivity
0.01 106/cm Ω
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51
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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
48.00 kJ/mol
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23
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Thermal characteristic and the concepts thermodynamics of Lanthanum. Thermal Properties of Lanthanum </>
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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
0.19 J/(kg K)
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32
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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
27.11 J/mol·K
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21
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Thermal conductivity (often denoted k, λ, or κ) is the property of a material to conduct heat. Thermal Conductivity
13.40 W/m·K
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57
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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
Not Available
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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
12.10 µm/(m·K)
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32
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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 Lanthanum
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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
399.60 kJ/mol
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17
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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
6.20 kJ/mol
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49
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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
431.00 kJ/mol
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16
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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
56.90 J/mol.K
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23
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Lanthanum 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, Lanthanum metal is also represented by the symbol La. This atomic symbol of Lanthanum is useful in indicating the position of metal La in the periodic table. If you are curious-headed or a science-geek, the common questions about metals are What is Lanthanum? What are its physical, chemical, mechanical, electrical and thermal properties? Find all the relevant facts about La metals in the following sections.

Periodic Table of Lanthanum

Periodic table of Lanthanum 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. Lanthanum metal belongs to Lanthanide Series 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 Not Available, whereas its period number is 6. It is placed under f block of the periodic table & is one of the prominent f block elements.

Lanthanum Metal Properties

Metals have certain properties by which they can be distinguished from one another. Magnetic and Atomic Structure of Lanthanum 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 Lanthanum is 57 and its atomic weight is 138.91 amu. The electrons in its atom are arranged in orbitals as [Xe] 5d2 6s2. Nuclear particles in Lanthanum atom are 82 neutrons, 57 protons and 57 electrons.

Physical and Chemical Characteristics of Lanthanum

Physical and chemical characteristics of Lanthanum are two major criteria while comparing this metal with other metals. Physical Properties of Lanthanum 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 White Solid. It starts melting at 920.00 °C. All these Lanthanum metal properties together define what is Lanthanum?

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