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Written by Zumra

Category: General Chemistry

Published: 28 June 2014

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Valence (or valency) of an element is a measure of its pairing power with other atoms whenever it forms chemical compounds or molecules. The definition of the valency is..

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Written by Afdhaal

Category: General Chemistry

Published: 20 October 2012

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How to remember electro-negativity series?

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