Question

electron configuration of chlorine isotopes
1.argon
2.calcium

Answer 1

Chlorine -
Cl15-2,8,5
Cl17-2,8,7

1. argon -2,8,8
2. Calcium- 2,8,8,2

Answer 2

Electronic configuration of chlorine isotopes is 2, 8, 7

[The number of electrons of both the isotopes of chlorine are same, only the neutrons differ in number. Therefore both the isotopes of chlorine will have the same electronic configuration.]

Electronic configuration of argon is 2, 8, 8

Electronic configuration of calcium is 2, 8, 8, 2