What is the highest energy level in which you would find electrons in a chlorine atom?

1 Answer
Jul 4, 2017

Answer:

The highest energy level in which you would find electrons in a ground state chlorine atom is the third energy level.

Explanation:

For most elements in their ground state, the period number in which they are located corresponds to the highest energy level that contains electrons.

Chlorine is in period 3, and its highest energy electrons are in the energy level #n=3#. We can see this in its electron configuration:

#"1s"^2"2s"^2"2p"^6color(red)("3s"^2"3p"^5)#