Valency of chlorine: Valency is defined as

Valency is defined as the total number of electrons an atom can lose, gain, or share at the time of bond formation to get a stable electronic configuration i.e. to complete an octet. The valency of an atom can be variable in different compounds or chemical reactions due to the different bonding circumstances. Most of the time valency varies/changes due to change in oxidation and reduction states. Chlorine (Cl) Valence Electrons There are four simple steps to find out the valence electrons ... Valence electrons: For main group elements (i.e s-block and p-block elements), the valence electrons are the electrons present in the outermost orbit. But for most of the transition and inner transition elements, the valence electrons are the electrons present in the shells outside the noble gas core. There are a total of seven valence electrons present in the outermost shell (valence shell) of the atom as the outer electronic configuration of chlorine atoms is n s 2 n p 5 . This table of element valences includes the maximum valence and most common valence values in chemistry. Use this for reference with a periodic table.