Final answer:
Ionic compounds are named by stating the cation name first, followed by the anion with a '-ide' suffix. Roman numerals indicate the cation's charge if it has multiple oxidation states. Polyatomic ions and numerical prefixes for molecular compounds are used when applicable. B. The name of the first element is followed by that of the second element, the latter of which ends in -ide Is the correct answer.
Step-by-step explanation:
Ionic compounds are named by first stating the cation, which is the name of the metal, and then following it with the name of the anion.
The name of the anion is typically the root name of the nonmetal with the suffix -ide added. For example, K₂O is named potassium oxide, where potassium is the cation and oxide is the anion.
When a metal can have multiple oxidation states, such as transition metals, Roman numerals are used in parentheses to indicate the specific charge of the metal ion. In the case of FeCl₂ and FeCl3, they are named iron(II) chloride and iron(III) chloride, respectively.
Furthermore, binary ionic compounds consist of a metal and a nonmetal, and when an ionic compound contains a polyatomic ion, its particular name must be memorized.
Finally, when naming molecular compounds with different ratios of elements, numerical prefixes like mono-, di-, tri-, and tetra- are used, except not for the first element if it's just one atom. An example of this is SF6, sulfur hexafluoride, where 'hexa-' indicates six atoms of fluorine.