Question

Write the Lewis structure for CO molecule.

Answer 1

(i) The outer (valence) shell configurations of carbon and oxygen atoms are

Carbon : (6) – 1s² 2s² 2p²

Oxygen : (8) – 1s² 2s² 2p⁴.

The valence electrons (4 + 6 = 10)

But it does not complete octet, thus multiple bond is exhibited.

Thus,

(ii) N (2s² 2p³), O (2s² 2p⁴)

5 + (2 x 6) + 1 = 18 electrons.

Thus,