Ionic Bond ( Electrovalence )

              The attractive force between ions of opposite charge is called ionic bond or electrovalence.   ( Atom loses an electron to form a positive ion other atom gain an electron to form a negative ion )

Ions

                Charged particles are called ions. Due to loss or gain of one or more electrons.

Electron Affinity

               The energy released when an isolated atom requires an additional electron.

Electronegative

                   Atom has gained an electron and become negatively ( - ve ) charged that is called electronegative elements.

Electropositive

                  Atom has lost an electron and become positively charged that is called electropositive elements.

Ionization Potential

               The energy necessary to remove an electron from an atom or molecule.

Parallel Spins

                   Electrons with parallel spins are represented by arrows pointing in same direction.