Question

All elements have charged valency. Explain.
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Answer 1

In order to write chemical formulae we need to understand how elements combine with each other to form molecules or ionic compounds. Ionic compounds are substances made from the combination of charged ( positive and negative) particles.

 

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.