Question

Among the following correct increasing order of energy of subshell's is a) 1s < 2s < 2p b)3s < 3p < 3d c) 4s > 3s > 2s d) 3p < 3d < 4f​

Answer 1

Answer:

a

Explanation:

1s

2s 2p

3s 3p 3d

4s 4p 4d 4f

5s 5p 5d 5f

6s 6p 6d

7s 7p

8s

The increasing order is 1s→2s→2p→3s→3p→4s→3d→4p→5s→4d→5p→6s→4f→5d→6p→7s→5f→6d→7p→8s