elektr valentligi– bundan tashqari, qutbli valentlik deb ham ataladi. Elektronning yo'qolishi yoki ortishi natijasida atom tomonidan olingan ijobiy yoki ortiqcha zaryadlar soniga teng bo'lgan ionning valentligi.
electrovalence – also called polar valence. the valence of an ion, equal to the number of positive or negative charges acquired by an atom through a loss or gain of electrons.