Outer electronic configuration of `Eu^(2+)`

Outer electronic configuration of K, Cu , and Cr are, respectively,

The alkali metals have an outer electronic configuration of

Element of group 14 (IV A) have outer electronic configuration of

The electronic configuration of Am^(2+) is

The outer electronic configuration of chromium is

The outer electronic configuration of group VA elements is

He and Be both have the same outer electronic configuration like ns^(2) type. Statement-2 : Both are chemically inert.