How does valence electron affect the valency of an element?
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Valency is the combining capacity of an atom. valence electrons are the number of electrons in the outermost shell.
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Valency is the combining capacity of an atom. valence electrons are the number of electrons in the outermost shell.
The number of electrons in an atom's outermost valence shell governs its chemical properties. Elements react to form a closed shell, corresponding to the electron configuration s2p6 . This tendency is called the octet rule, because the atoms have eight valence electrons.
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