Isotopes are atoms with the same number or protons and electrons but different numbers of neutrons.
Here, we got Z = 29 so the charge of the nucleus is 29, and A is the atomic mass.
Since the atom number (Z) is 29, so i guess the isotope is the Copper.
Isotopic notation: [tex]Cu_{29}^{65} [/tex]
Hope this Helps :)
