[SeeSac]

Wrong. You fail chemistry. The atomic mass of CL 35 is 35.453 as a result of CL 35 having 17 protons and 18 neutrons.

The format of your post is a little confusing. Are these your words? If so, you are incorrect. It is because it is a mixture of ³⁵CL and ³⁷CL and is a result of CL 35 having 17 protons and 18 neutrons CL 37 having 17 protons and ____ neutrons. I will let you fill in the blank.

[BenKenobi]

“If so, you are incorrect. It is because it is a mixture of 35CL and 37CL and is a result of CL 35 having 17 protons and 18 neutrons CL 37 having 17 protons and ____ neutrons. I will let you fill in the blank”

19.

Relative atomic mass has nothing to do with the actual properties of Chlorine. This is why it shouldn’t be on a periodic table.