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1. (Chemistry) chem a property of atoms or groups, equal to the number of atoms of hydrogen that the atom orgroup could combine with or displace in forming compounds

It is a chemical element with chemical symbol is H

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Valence is denoted using a positive or negative integer used to represent this binding capacity. For example, common valences of copper are 1 and 2. No..... Element Valence 1 Hydrogen (-1), +1
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