Atoms of the same element can have different numbers of neutrons in the nuclei of their atoms. This means that atoms of the same element can differ in the mass of their nucleus. Key fact Isotopes ...
Chlorine naturally exists as two isotopes, \(_{17}^{35}\textrm{Cl}\) (chlorine-35) and \(_{17}^{37}\textrm{Cl}\) (chlorine-37). The abundance of chlorine-35 is 75% ...