An ionic bond is an _______ between ions of opposite _______ in an _______ compound. A ______ bond is formed when 2 atoms share one or more pairs of _______. Complex biological ______ are formed in large part by atoms that can form 1 or more _____ bonds: C, H, O, and N. A ______ covalent bond is formed by an _____ sharing of electrons. _______ bonds exhibit equal sharing of ______.
