Question

(a) Write down the electronic configuration of (i) magnesium atom, and (ii)magnesium ion. (At. No. of Mg = 12)
(b) Write down the electronic configuration of (i) sulphur atom, and (ii) sulphide ion. (At. No. of S = 16)

Lakhmir Singh Chemistry Class 10

Answer 1

Mg:(Ne)3s2
for  S:(Ne)3s2 3p4

Answer 2

For Magnesium: (NE) 3s2
For S: (NE) 3s2 3p4