# As the atomic masses of the elements in the periodic table increase, what happens to the number of atoms in 1 mol of each element?

One mole of something specifies $6.022 \times {10}^{23}$ individual items of that something. If the element is mono-atomic, and elements typically are, then 1 mol of atoms $\equiv$ 1 mol of atoms, whatever the size or the mass of the atoms.