1. Convert grams to moles:
* Molar mass of sodium (Na): 22.99 g/mol
* Moles of sodium: (0.2310 g) / (22.99 g/mol) = 0.01005 mol
2. Convert moles to atoms:
* Avogadro's number: 6.022 x 10^23 atoms/mol
* Number of sodium atoms: (0.01005 mol) * (6.022 x 10^23 atoms/mol) = 6.05 x 10^21 atoms
Therefore, there are approximately 6.05 x 10^21 sodium atoms in 0.2310 g of sodium.