How many atoms of zinc are in 0.60 mol of zinc?

One molecule mole, according to Avogadro's law, contains 6,023*10^23 molecules.

One Zn molecule is made up of only one atom of Zn (it is a metal)

Since you have 0.6 moles of Zn = > number of Zn atoms in 0,6 moles = 0,6*6,023*10^23=3,613 * 10^23 atoms