Question

1. what is the total number of partially occupied 2p orbitals in a nitrogen atom in the ground state?

Explanation:

Step1: Write electron - configuration of nitrogen

Nitrogen has atomic number 7. Its electron - configuration in the ground state is $1s^{2}2s^{2}2p^{3}$.

Step2: Analyze 2p orbital occupancy

The 2p sub - shell has 3 orbitals. According to Hund's rule, the 3 electrons in the 2p sub - shell of nitrogen occupy 3 different 2p orbitals singly. So, the number of partially occupied 2p orbitals is 3.

Answer:

3