Question

Which of the following species is isoelectronic with CO?

• A. $N_2$
• B. $0^-_2$
• C. HF
• D. NJ

Answer 1

Answer: (A)

$N_2$

Answer 2

CO (6 + 8 = 14 electrons) is isoelectronic with $N_2$ (2 $\times$ 7 = 14 electrons).