why some elements have variable valency
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Some same element exibits one valency in one compound and another valency in other compound.This is called Variable Valency.
Some elements show variable valency 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.
Some elements show variable valency 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.
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Some elements show variable valency 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.This is called variable valency.
Hope it helps..!!
Hope it helps..!!
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