Answers

2014-12-07T13:29:36+05:30
Valency(or valence) of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.
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2014-12-07T13:33:00+05:30
It is a property of atoms or groups, equal to the number of atoms of hydrogen that the atom or group could combine with or displace in forming compounds is called Valence.
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