Question

name the following ionic species. naf

sodium monofluorine

sodium monofluoride

sodium fluorine

sodium fluoride

Explanation:

To name ionic compounds like NaF, we use the name of the cation (sodium, from Na⁺) followed by the name of the anion. The anion here is fluoride (from F⁻, since fluorine gains an electron to form F⁻, and we use the -ide suffix for monatomic anions). We don't use "mono-" for the anion when the ratio is 1:1 (as in NaF, where one Na⁺ combines with one F⁻), so the correct name is sodium fluoride.

Answer:

D. sodium fluoride (assuming the last option is labeled D; if the options are labeled differently, adjust the identifier, e.g., if the last option is A, then A. sodium fluoride)