Question

how many energy levels are necessary to contain the first 6 electrons in an electron cloud? 1 10 2 6

Explanation:

Step1: Recall electron - shell capacity

The first energy level (K - shell) can hold a maximum of 2 electrons. The second energy level (L - shell) can hold a maximum of 8 electrons.

Step2: Calculate number of energy levels

2 electrons fill the first level, and the remaining 4 electrons go to the second level. So 2 energy levels are needed.

Answer:

2