Question

Which has more number of atoms, 100 grams of sodium or 100 grams of iron

Answer 1

100g Na=(100/23)moles Na=(100/23)*6.022*10^23 atoms of Na

100g Fe=(100/55.8)moles Fe = (100/55.8)*6.022*10^23 atoms of Fe

So Na (sodium)has more number of atoms,