Which of the following electron configurations is not consistent with Hund's rule?

Question

1) 1s^2 2s^2 2p^2 3s^1
2) 1s^2 2s^2 2p^6 3s^2 3p^5
3) 1s^2 2s^2 2p^6 3s^3 3p^6
4) 1s^2 2s^2 2px^2 2py^1

Answer 1

Answered below.

Answer 2

I thought #3 was the answer because there is no such thing as 3S^3 right?