# Number of Moles & Number of Particles (calculation 1)

**How many atoms are there in 1 mole of Magnesium?**

1 mol Mg = 6.02 x 10^{23} Mg atoms

*1 mole of Magnesium contains 6.02 x 10^{23} Magnesium atoms.

**How many atoms are there in 0.5 mole of Magnesium?**

0.5 mol Mg = 0.5 x 6.02 x 10^{23} = 3.01 x 10^{23} Mg atoms

*0.5 mole of Magnesium contains 3.01 x 10^{23} Magnesium atoms.

**How many atoms are there in 2 moles of Magnesium?**

2 mol Mg = 2 x 6.02 x 10^{23} = 1.204 x 10^{24} Mg atoms

*2 moles of Magnesium contains 1.204 x 10^{24} Magnesium atoms.

**How many atoms are there in 2 moles of Aluminium?**

2 mol Al = 2 x 6.02 x 10^{23} = 1.204 x 10^{24} Al atoms

*2 moles of Aluminium contains 1.204 x 10^{24} Aluminium atoms.