Question

what is the maximum number of electrons in the second principal energy level?
32
18
8
2

Explanation:

Step1: Recall the formula for electron capacity

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

Step2: Substitute \(n = 2\) into the formula

When \(n=2\), we calculate \(2\times(2)^{2}\). First, \(2^{2}=4\), then \(2\times4 = 8\).

Answer:

8