Question

What is the next atomic orbital in the following series?

1s, 2s, 2p, 3s, 3p, ___

A. 3d
B. 2d
C. 4s
D. 2f

Answer 1

4s

Step-by-step explanation:

4s

Answer 2

The order of the electron orbital energy levels, starting from least to greatest, is as follows: 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 7s, 5f, 6d, 7p.