What is valency? if z = 4 what is the valency of the element. – InterviewSolution

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1.	What is valency? if z = 4 what is the valency of the element.
Answer» If z = 4 it MEANS the atomic number of that element is 4 and therefore there are 4 no. of ELECTRONS present in the ATOM of that element. The element with atomic no. 4 is beryllium and the valency of beryllium is 2 DUE to the presence of 2 valence electrons.

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