how variable valency are caused?
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Elements with Variable Valency. Transition metals nickel, copper, tin and iron exhibit variable valency. Nonmetals such as nitrogen and oxygen also show variable valency. The products formed as a result of reaction with the different valencyatoms differ in their properties.
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Elements with Variable Valency. Transition metals nickel, copper, tin and iron exhibit variable valency. Nonmetals such as nitrogen and oxygen also show variable valency. The products formed as a result of reaction with the different valencyatoms differ in their properties.
Hope it's help u
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