how valency varies along tha period down tha grop in a peridic table
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Answer: Answer: The valency of an element is dependent on the number of electrons in the outermost shell of the electron. In a group all constituting elements will have the same valency because they all have the same number of electrons in the outer shells. Across the a period, the number however increase by 1.
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DOWN THE GROUP : VALENCY REMAINS SAME
Along a period : VALENCY increases upto group 14 and then decreases
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