Question

choose correct option.which of the atomic number represent the s- block element.a.7,15 b.3,12 c.6,14 d.9,17​

Answer 1

Answer:

b option

Explanation:

3 = lithium = 2,1general electronic

12 = magnesium = 2,8,2 general electronic

in S subshell only 2 electron are placed so here last shell has 1 and 2 electron from there electronic configuration