Question

question 25 (1 point)
how many electrons would be found in an atom that has the n = 1 and n = 2 energy levels filled?
2
4
6
8
10

Explanation:

Step1: Calculate electrons in n = 1 level

The formula for the number of electrons in a shell is \(2n^{2}\). For \(n = 1\), \(2\times(1)^{2}=2\) electrons.

Step2: Calculate electrons in n = 2 level

For \(n = 2\), \(2\times(2)^{2}=8\) electrons.

Step3: Sum the electrons

Total electrons \(=2 + 8=10\)

Answer:

10