So although chlorine has a mass number of 35 which means ... A = 64 Number of neutrons N = 64 - 30 = 34 Since this is a nucleus there are no electrons There are 30 protons and 34 neutrons.

A small piece of sodium metal is placed in a flask of chlorine gas. A little water helps expose the sodium so it can react with the chlorine gas. The reaction releases a lot of heat as the ionic ...

But remember, there are no electrons inside the nucleus. This is the chemical symbol for chlorine, written with its mass number and atomic number. Calculate the number of protons, neutrons and ...