Question

Chlorine (Cl) has nine electrons. How many electrons are in the n=1 shell?

Answer 1

So... for the element of CHLORINE, you already know that the atomic number tells you the number of electrons. That means there are 17 electrons in a chlorine atom. Looking at the picture, you can see there are two electrons in shell one, eight in shell two, and seven in shell three.

Explanation: