For an atom of chlorine-35, what number would you put as the SUPERSCRIPT in the atomic notation?

CI.Strictly speaking,the subscript is unnecessary ,since all atoms of cholorine have 17 protons.Hence the isotope symbols are usually written withouth the subscript.³⁵CI and ³⁷CIEXPLANATION:I HPE IT HELP THANK YOU!

Answer; carbon monoxide (co);