Question

3 what are the ions present in the compounds
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Answer 1

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what are the ions present in the compounds

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Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms) gains or loses electrons. (A cation is a positively charged ion; an anion is a negatively charged ion.) Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules.

Answer 2

Answer:

The ions present in Na2O are sodium ions (2Na+) and oxide ion O2-. The ions present in MgO are magnesium ion (Mg2+) and oxide ion O2-.