Four elements that are the least likely to form an ionic compound are carbon, silicon, nitrogen and sulfur.
Ionic compounds are compounds made up of ions that form charged particles when an atom (or group of atoms) gains or loses electrons.
In other words, Ionic compounds are neutral compounds made up of positively charged ions called cations and negatively charged ions called anions.
Examples of elements that are the least likely to form an ionic compound include the following;
Carbon does not form ionic bonds because it has 4 valence electrons, half of an octet.
Generally, atoms which do not lose or gain electrons of their outermost orbit easily do not form ionic bonds.
Thus, four elements that are the least likely to form an ionic compound are carbon, silicon, nitrogen and sulfur.
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