1) Also calledSee 
(e-lek″tro-va´lәns) the number of charges an atom acquires in a chemical reaction by gain or loss of electrons. the bonding resulting from such transfer of electrons. adj., electrova´lent., adj.
In chemistry, electrovalence is the valence as determined by the electrons lost or gained by the elements reacting to form a compound.
Also calledthe valence of an ion, equal to the number of positive or negative charges acquired by an atom through a loss or gain of electrons. · Also calledSee