Q: Number of unpaired electrons in the nitrogen atom.

Question

A: 1s^2 2s^2 2p^6. 3 unpaired electrons in the p orbital

Q: Number of 4d orbitals.
A: 10

Q: Maximum number of electrons that can have n=3 and l=1.
A: 1s^2 2s^2 2p^6 3s^2 3p^6. 2 electrons

Answer 1

#1. The answer is correct at 3 but your electron configuration is not right. You have 10 electrons and N has only 7.

#2. not correct.

#3. 2 electrons is right but what's with the electron configuration? I see no need for that and certainly no use for it.