ANSWER
he number of atoms of lithium is 5.039 x 10^24 atoms
EXPLANATION
Given that;
The number of moles of lithium is 8.37 mol
Follow the steps below to find the number of atoms of lithium
[tex]\text{ mole = }\frac{\text{ number of atoms}}{\text{ Avogadro's number}}[/tex]Recall, that the Avogadro's number is 6.02 x 10^23
[tex]\begin{gathered} \text{ mole = }\frac{\text{ Number of atoms}}{\text{ Avogadro's number}} \\ \\ \text{ 8.37 = }\frac{\text{ number of atoms}}{\text{ 6.02 }\times\text{ 10}^{23}} \\ \text{ cross multiply} \\ \text{ Number of atoms = 8.37 }\times\text{ 6.02 }\times\text{ 10}^{23} \\ \text{ Number of atoms= 50.39 }\times\text{ 10}^{23} \\ \text{ Number of atoms = 5.039 }\times\text{ 10}^{24}\text{ atoms} \end{gathered}[/tex]Therefore, the number of atoms of lithium is 5.039 x 10^24 atoms
