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vova2212 [387]
3 years ago
14

Some elements have variable valencies .give reason​

Chemistry
1 answer:
Angelina_Jolie [31]3 years ago
3 0

Answer:

Some elements have variable valencies because of the different electronic configurations. An atom of an element can sometimes lose more electrons than are present in its valence shell i.e. loss from the penultimate shell and hence exhibit more than 1 or variable valency.

Explanation:

Hope it helps.

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