What are (i) ionic compounds, and (ii) molecular compounds ? Give two examples of each type of compounds.
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Ionic compounds are compounds formed of ions, charged particles that form when an atom (or group of atoms, in the case of polyatomic ions) gains or loses electrons.
A cation is a positively charged ion
An anion is a negatively charged ion.
Covalent or molecular compounds develop when elements share electrons in a covalent bond to create molecules. Molecular compounds are electrically neutral.
Ionic compounds are (normally) produced when a metal reacts with a nonmetal (or a polyatomic ion). Covalent compounds are formed when two nonmetals react with each other.
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