Question

Explain the concept valency

Answer 1

In chemistry, the valence or valency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules. The concept of valence developed in the second half of the 19th century and helped successfully explain the molecular structure of inorganic and organic compounds.

Answer 2

the combining capacity of an atom is called it's valancy it is determined by the no. of valence electrons present in an atom of that element

ex- valency of oxygen is 2

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