Question

what are ions how they are different from valency​

Answer 1

Answer:

Ions are atoms that have lost or gained electrons and, therefore, have a net charge.

THE WAY OF CHARGE ON VALENCY IS CALLED CHARGED VALENCY. charge is always related to atoms whereas valency is related to elements and is similar to the number of ion (negative or positive) present on the element.

Answer 2

Ions are atoms or molecules that have gained or lost one or more of their valence electrons and therefore have a net positive or negative charge.

The valency of an ion is equal to the charge on the ion. If an ion has 1 unit charge,its valency is 1 and is called monovalent ion.