Kossel Lewis Approach To Chemical Bonding
Lewis discussed that atoms achieve stable octet when they linked by chemical bonds.
·
In
NaCl, an electron transfer from
Na to Cl and give Na+ and Cl- ions and ,
·
In case of Cl2,H2,F2, sharing of electron takes place to complete
stable outer octet.
·
Valence electrons take part in chemical
reaction or combination.
·
Symbol to represent valence electron in
atom is known as Lewis symbol.
Example:-
· Significance of Lewis symbol
To
calculate valence = (no. Of dots and or / eight minus no. Of dots)