Question

multiple - choice question
ionic bonds form between
a metal and a non - metal
two or more metals
only non - metals
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Explanation:

Ionic bonds form when one atom donates electrons (usually a metal) and another atom accepts electrons (usually a non - metal). Metals have low ionization energies (easily lose electrons) and non - metals have high electron affinities (easily gain electrons). Two or more metals form metallic bonds. Only non - metals form covalent bonds (either polar or non - polar depending on electronegativity differences).

Answer:

A. a metal and a non - metal