Question

How many valence electrons does `N` have?

Answer 1

Nitrogen have 5 valence electrons.

Explanation:

Nitrogen atomic number (see Periodic Table, for example: https://iupac.org/what-we-do/periodic-table-of-elements/) is `Z = 7`. Then, the electronic structure of nitrogen is: `1 s^2 2 s^2 2 p^3`. Valence electrons are the electrons an atom have in the last level. In the nitrogen, last level is level 2, then there are 5 electrons of valence.