An element forms an oxide A2 O5. What is the valency of the element A. What will be the formula of the chloride of the element Please Help Me.
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b) The valency of an atom equals the number of electrons in the outer shell if that number is four or less than four. Thus, Since, the valency of element A is 5 and valency of chlorine is -1, Therefore, the formula of chloride of A will be ACl5.17-Dec-2016
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