Question

nitrogen what is the atomic number? what is the mass number? what is the chemical symbol? what is the electron configuration? what is the net charge of the atom?

Explanation:

Step1: Recall electron - configuration rules

For an atom with atomic number \(Z = 7\), electrons fill orbitals in the order \(1s<2s<2p\).

Step2: Fill electrons into orbitals

The first two electrons go into the \(1s\) orbital (\(1s^{2}\)), the next two into the \(2s\) orbital (\(2s^{2}\)), and the remaining three into the \(2p\) orbital (\(2p^{3}\)). So the electron - configuration is \(1s^{2}2s^{2}2p^{3}\).

Answer:

\(1s^{2}2s^{2}2p^{3}\)