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30/12/2020 4:13 pm
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What is valency? Explain different types of valencies.
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30/12/2020 4:16 pm
The combining capacity of an atom is called its valency.
There are 2 types of valencies.
Covalency: When an atom share electrons have combining capacity.
Electrovalency: When an atom loses or gains electrons.
Some atoms also show zero valency when there outermost shell is completely filled.