Question

isoelectronic species are
(1) CO, CN^- , NO+,C2^2-
(2) CO-,CN,NO,C2^-
(3)CO+,CN+,NO-,C2^-
(4) CO,CN,NO,C2​

Answer 1

Answer:

Isoelectric species are in the first structure... all have 14 electrons..

Add all the electrons...you will get the answer...

Answer 2

Answer:

2

Explanation:

because co- has atomic number 29

CN has atomic number 29

NO has atomic number 29

c2- has atomic number 29