Question

explain about electronic theory of valency by Lewis and kossel

Answer 1

The electronic theory of valency was originated by Kossel and Lewis (1916) independently and applied by Langmuir (1919). According to this theory, every element has a tendency to occupy inert electronic configuration of the nearest inert gas, because it is considered as the most stable configuration (stable octet).

Answer 2

Kossel and Lewis developed the electronic theory of valence to explain the formation of chemical bonds between the two atoms. According to this theory, every atom tries to attain octet configuration (presence of eight electrons) in its valence shell by losing or gaining or by sharing of electrons.

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