Question

Set of isoelectronic species is
(a) N₂ ,CO₂ ,CN⁻ ,O (b) N₂,H₂S,CO
(c) N₂ ,CO,CN⁻ ,O₂⁺² (d) Ca,Mg,Cl

Answer 1

Answer:

(d) Ca , Mg ,Cl

hope it helps

Answer 2

(c) N₂ ,CO,CN⁻ ,O₂⁺²

Explanation:

Isoelectronic species means the atoms or group that have the same number of electrons. No. of electrons in:

CO: 6+8 = 14

N2: 7+7 = 14

O2+2 : 8+8-2 = 14

CN- : 6+7+1 = 14

So Option C is the answer.

All 4 atoms have 14 electrons.