Is both because is a compound and a molecule.
The ionic compound Co2O is called cobalt(II) oxide.
Cobalt is a chemical element and has atoms.
There is no reason at all why cobalt cannot be combined with more cobalt. It can. Cobalt is a metal. It can be recovered from ore and refined, then melted down with other cobalt pieces to form one large mass of the metal.
Cobalt(III) phosphide
The formula for cobalt chloride, a covalent compound, is CoCl2. In this compound, cobalt has a charge of +2 and chloride has a charge of -1, so two chloride ions are needed to balance the charge of one cobalt ion.
Co2 would be a diatomic molecule of cobalt (Co), but since cobalt is a metal it does not form molecules and is simply Co. CO2 is not an element but a compound of the two elements carbon and oxygen. It is carbon dioxide.
Cobalt is an element
The chemical name is Cobalt (III) phosphate.
The chemical formula for the compound of cobalt and sulfur is CoS (cobalt monosulfide).
Yes, cobalt form many chemical compounds as cobalt nitrate, cobalt chloride, cobalt sulfate, cobalt sulfide, etc.
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