There are 2.06 x 10²⁴ atoms
The mole is the number of particles (atoms, molecules, ions)contained in a substance
1 mol = 6.02.10²³ particles
Moles can also be determined from the amount of substance mass and its molar mass
[tex]\tt 10.2\times 6.02\times 106{23}=2.06\times 10^{24}[/tex]