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whatis valency?
In chemistry, valency is the power of an atom of an element to combine with other atoms measured by the number of electrons which an atom will give, take, or share to form a chemical bond. This is related to the number of spaces left in an atom's electron shells. The adjective describing an atom's valency uses a Greek prefix (sometimes such as mono, b\di, tri, tetra etc. for valencies of 1, 2, 3, 4.


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