Which best describes what happens to valence electrons in an ionic bond?

Valence Electrons are the only most stable arrangement of electrons for compounds and elements. But when it is accompanied in an ionic bond it will happen to transfer to another atom, so the other groups of atoms can have full outer shell it will oppositely charge and will attract them to form another certain ionic bond that gives away or accepts electrons.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

producing or giving rise torelating to or engaged in the production of goods, crops, or other commodities.

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.