Answered

An ionic bond can be formed when one or more electrons are:

AEqually shared between two atoms
Bunequally shared by two atoms
Ctransferred from the nucleus of one atom to the nucleus of another atom
Dtransferred from the valence shell of one atom to the valence shell of another atom

Verified Answer :

zeen

D - for example, Potassium has 1 electron on its outer shell, whilst Chlorine has 7 electrons on its outer shell. Potassium loses one electron to Chlorine so that each of them have a full outer shell. This would form Potassium Chloride.