Question

what is the total number of orbitals in the fourth main energy level? 16 4 9 1

Explanation:

Step1: Recall the formula for the number of orbitals

The formula for the number of orbitals in a main energy level \(n\) is \(n^{2}\).

Step2: Substitute \(n = 4\) into the formula

When \(n=4\), we calculate \(n^{2}=4^{2}\).

$$4^{2}=4\times4 = 16$$

Answer:

16