An element from group eighteen from the Periodic Table is commonly referred to as a "noble" or "inert" gas. These elements have filled electron shells, and therefore they do not share, take or give away any electrons. As a group they do not react with othere elements to form compounds (with only a couple of rare exceptions).
A group in Periodic Table is the column of element in periodic table
Group nine to eighteen (B-Families) of 'd' and 'f' blocks of periodic table are transition elements.
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.
5
lithium
group 1
group 18
Seaborgium is in the group 6 of the periodic table.