Here's why:
* Polarity refers to the uneven distribution of electrons within a molecule, creating partial positive and negative charges.
* Sodium exists as individual atoms, not molecules. It doesn't form covalent bonds (the type of bond that can be polar or nonpolar) with other sodium atoms.
Instead, sodium readily forms ionic bonds with nonmetals, like chlorine, to create ionic compounds like sodium chloride (NaCl). In this case, the ionic bond involves the transfer of electrons, making sodium a cation (Na+) and chlorine an anion (Cl-).
