The iron (II) sulphide is a chemical compound; no metal or metalloid.
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FeS2, also known as iron(II) disulfide, is a covalent compound. It is made up of iron cations (Fe2+) and sulfide anions (S2-), which form a covalent bond through the sharing of electrons.
FeS2 iron(II) disulfide is ionic, it contains the Fe2+ and S22- ions. The compound crystallises in a number of shiny metallic forms, one called pyrite ("fools gold") and the other marcasite
FeS2, also known as iron disulfide or pyrite, is considered to be a covalent compound. Iron and sulfur form covalent bonds in the structure of FeS2, sharing electrons in the bond formation.
It is ionic
Bases can be both ionic and covalent in nature.
Br2 is a covalent compound. It consists of two bromine atoms sharing electrons to form a covalent bond.
Calcium phosphate has both ionic and covalent bonds. The bond between calcium and phosphate is predominantly ionic, while the bonds within the phosphate ion itself are covalent.