Given the number of atoms or molecules, we need to use Avogadro's number, but first, let's review this concept: The number 6.02×10^(23 ) is called Avogadro's number, the number of representative particles in a mole or atom.
Remember that the symbol of tellurium is Te. Now, doing the conversion to moles we're going to obtain:
[tex]2.33\cdot10^{23}atoms\text{ Te}\cdot\frac{1\text{ mole}}{6.02\cdot10^{23}\text{atoms}}=0.387\text{ moles Te.}[/tex]With this number, we can obtain the grams of tellurium using the molar mass that you can find in the periodic table which is 127.6 g/mol. The conversion from moles to grams will be:
[tex]0.387\text{ moles Te}\cdot\frac{127.6\text{ g Te}}{1\text{ mol Te}}=49.38\text{ g Te.}[/tex]So, 2.33 x 10^(23) atoms of Te are 49.38 of tellurium.
