1) List known data
NA = 6.022*10^23
List unknown data
Mass in grams:
Molar mass: 92.906 g/mol
2) Find out the mass
[tex]gramsof1atomofNiobium=92.906\frac{g}{\text{mol}}\cdot\frac{1\text{mol of niobium}}{6.022\cdot10^{23}\text{atoms of niobium}}=1.543\cdot10^{-22}g[/tex]One atom of niobium weighs 1.543*10^-22 g
