Formula for valency of metals and non metals
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As a result, it has six valence electrons. According to the formula, the valency of a non-metallic element =8– number of electrons in its outermost shell. =8–6=2.
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Valency of Oxygen
According to the formula, the valency of a non-metallic element =8– number of electrons in its outermost shell. =8–6=2.
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