Give the main feature of Kossels explanation of chemical bonding.

According to Kossel, atoms combine with each other to complete their octet and become stable like noble gases which have eight electrons in the outermost shell except Helium.

This is done by the loss of and gain of electrons.The negatively charged ions are formed by the gain of electron/s and positively charged ions are formed by the loss of electron/s.

The positively charged and negatively charged ions are held together electrostatic attraction and thus combine to form an ionic compound.Example: Na⁺ and  Cl^- ions combine to form NaCl