Question

Subshell electronic configuration of some elements are given (symbols are not real)

A). [Ne]3s2

3p5

B). [Ar]4s2

C). [Ar] 3d5

4s1

C). [Ar] 3d10 4s2

4p5

(a). Which of the following are in same group


(b). which element only shows +2 Oxidation State

(c). write electronic configuration of C

3+

- ion​

Answer 1

Answer:

abc are in same group it will not shown oxidation