Question

which option describes something that causes ionic bonds to form? (1 point)
replacement reactions
large electronegativity differences
combustion reactions
small electronegativity differences

Explanation:

Ionic bonds form when there is a large difference in electronegativity between two atoms. One atom donates electrons (low electronegativity, usually a metal) and the other accepts them (high electronegativity, usually a non - metal). Replacement and combustion reactions are types of chemical reactions but not the cause of ionic bond formation. Small electronegativity differences lead to covalent bonds (either polar or non - polar), not ionic bonds.

Answer:

large electronegativity differences