elements that share the same colum
A group in Periodic Table is the column of element in periodic table
An elements period is its row in the periodic table.
Calcium, Magnesium, and Radium are all in group two of the periodic table.
group 14
The element in period 4, group 7 of the periodic table is Manganese (Mn).
Argon (Ar, element number 18) is the last element in the third period of the periodic table.
This element is francium.
lithium
5
group 1
group 18
Seaborgium is in the group 6 of the periodic table.