Question

(c) Which of the following orbitals is not possible and why?
2d, 2s, 3p, 3s

Answer 1

Explanation:

Only 1s orbital is present in 1st shell.

Only 2s,2p orbitals are present in 2nd shell.

Only 3s, 3p,3d orbitals are present in 3rd shell.

Only 4s, 4p,4d and 4f orbitals are present in 4th shell.

So 1p and 3f do not exist