According to the octet rule and atom loose, gain for shared electrons in order to have 8 electrons in their valence shell. and in this way it achieves noble gas-like configuration and achieves stability.
Significance:
Explain the reason and nature of bond form during a chemical reaction.
Limitation:
Incomplete Orbit- compounds like have 6 electrons in their valence shell that they exist in nature.
expanded Orbit:- compounds like have 10 electrons in the outermost shell and still exist.
Hydrogen and Helium required only two electrons in their valence shell to achieve stability.
Final Answer:-
According to the octet rule those compounds which have 8 electrons in their valence shell are stable.
It was able to explain the reason and nature of bond formation.
It was an not able to explain the existence of compounds like