Question

write down the electronic configuration of the following (a)Mg12(b)Cl-18(c)Na+10

Answer 1

1) 2,8,2 is the electronic configuration of Mg12.
2)2,8,7 is the electronic configuration of Cl17.
3)2,8,1 is the electronic configuration of Na11.

Answer 2

a) Mg- 12 - 2,8,2
b)Cl -17 - 2,8,7
C)Na- 11 - 2,8,1