The number of atoms in of magnesium is

CHEMISTRY · Single correct · A Level · Chemistry · Amount of substance · Amount of substance

Problem

The number of atoms in

0.004\,\text{g}

of magnesium is (1)

4\times10^{20}

(2)

8\times10^{20}

(3)

10^{20}

(4)

6.02\times10^{20}