Question

which element is this for? 44 phosphorus lithium carbon nitrogen

Explanation:

Step1: Calculate the total number of electrons

The electron configuration is \(1s^{2}2s^{2}2p^{3}\).
The number of electrons in \(1s\) is \(2\), in \(2s\) is \(2\), and in \(2p\) is \(3\).
So the total number of electrons \(n = 2 + 2+3=7\).

Step2: Determine the element based on atomic number

In a neutral atom, the number of electrons is equal to the atomic number.
Since the atomic number \(Z = 7\), and nitrogen (\(N\)) has an atomic number of \(7\).

Answer:

Nitrogen