Question

write a short note on electronic theory

Answer 1

This theory explains about the cause of chemical reaction/combination on the basis of valence shell electron (i.e electron present in the outermost orbit) & tendency to lose or gain an electron. The outermost shell of an atom is called valence shell &electron present in it is called valence electron. The valence electron of an atom is denoted by Lewis dot symbol.  In chemical reaction/combination very atom tries to adjust it’s electronic configuration like nearest noble gas by losing r gaining or sharing of the electron. This rule is called octet rule.