In the process of ionic bonding: a. outer energy level electrons are shared b. the resulting molecule is always charged c. outer energy level electrons are gained and lost d. the resulting ions repel each other

A. Outer energy level electrons are shared.

In electrovalent combination, after donating their valence electrons, metallic particles become positively charged; non metallic particles become negatively charged after acquiring extra electrons.

The electrons involved reside in the outermost shells of the atoms.

PeAcE.

Nuclear fusion, so the answer should be nuclear.

Explanation: