Final Answer:
The ionic compounds is:
Potassium sulfate
Step-by-step explanation:
Potassium sulfate (K₂SO₄) is an ionic compound formed by the combination of the metal ion potassium (K⁺) and the polyatomic ion sulfate (SO₄²⁻). In ionic compounds, metals transfer electrons to nonmetals to achieve a stable, noble gas electron configuration.
In this case, potassium donates one electron to form a K⁺ ion, and sulfate, a polyatomic ion composed of sulfur and oxygen, accepts two electrons to form SO₄²⁻. The resulting combination of K⁺ and SO₄²⁻ ions in a 1:1 ratio creates the compound K₂SO₄.
Ionic compounds are named using a systematic nomenclature. For K₂SO₄, the name "potassium sulfate" reflects the elements involved and their respective charges. The metal (potassium) is named first, followed by the nonmetal (sulfate), and the suffix "-ate" is used to indicate the polyatomic ion.
The numerical prefixes, such as di- for two, are used only when there is more than one polyatomic ion present. In this case, since there is only one sulfate ion, the prefix is not required. Therefore, the final name of the ionic compound is "potassium sulfate."