Question

Which has more number of atoms, 50g of sodium or 50g of Ca?
(given atomic mass of Na = 23u, Ca = 40 u)?​

Answer 1

Answer:

Na

Explanation:

50 gram sodium is 50/23 moles

50 gram calcium is 50/40 moles

wherever you have more moles there you have more atoms since  moles = Avogadro number x atoms

of course  50/23 > 50/40

so sodium has more atoms