Actinium in Periodic Table
Have you identified the position of Actinium in periodic table? Well, the periodic table is a tabular arrangement of all the known chemical elements with respect to their atomic numbers, which eases the task of locating and grouping metals with similar properties & characteristics. Actinium periodic table elucidates about significance of its position in the periodic table. Any metal can be easily identified and located on the periodic table, provided its group, period, block, atomic number or other periodic table facts are known.
Element family of Actinium (Ac)
Metals in the periodic table are categorized into different element categories like Alkali Metals, Alkaline Earth Metals, Transition Metals, Post-Transition Metals, Lanthanides, Actinides and so on! In periodic table, it is categorized under Actinide Metals. Element family of Actinium (Ac) defines its elemental group in the periodic table. Total 15 metals are included in actinide series, from Actinium to Lawrencium. Actinide series is located under f and d block of the periodic table. Because of their position in the periodic table, actinide series metals do not consist of a group number in the periodic table. These 15 actinide series metals are also called as rare earth elements. Along with alkali metals, you can also know more about the metals in other categories like Base Metals and Noble Metals.