Question

the valence of elements and polyatomic ions.

Answer 1

Answer:

Valency refers to the ability of an atom or a group of chemically bonded atoms to form chemical bonds with other atoms or groups of atoms. The valency of an element is determined by the number of outer shell (valence) electrons. The valency of polyatomic ions (such as SO42- ) is the charge on the ion.

Explanation:

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