Question

The element X, Y, Z and T have the indicated electronic configurations. Starting with the innermost shell, which is the most metallic element [CPMT 1979, 93]
A) X=2,\,8,\,4 B) Y=2,\,8,\,8 C) Z=2,\,8,\,8,\,1 D) T=2,\,8,\,8,\,7

Answer 1

C) Z=2,8,8,1
Hope this helps you