Chemical Bonding and Molecular Structure
Chemical bond is the attractive force, which holds various constituents (such as atoms, ions) together in different chemical species.
Atoms tend to gain, lose, or share electrons so as to have eight electrons in their valence shells.
Lewis dot Structure:
Representation of molecules and ions in terms of the shared pairs of electrons and the octet rule
Lewis structure of O3→
F.C. on the O-1
F.C. on the O-2
F.C. on the O-3
Limitations of the octet rule:
- Incomplete octet of the central atom
E.g. BeH2, LiCl, BCl3
- Odd electron molecules
E.g. NO, NO2
- Expanded octet
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