Question

1. What is meant by the term 'variable valency'. Give a reason why silver exhibits a valency of +1 and
2. Give examples of eight metals which show variable valency. State the valency of sulphur in:a] SO2, b] so. State the valency in each​

Answer 1

Explanation:

What is the cause of variable valency? ... So one or more electrons from the core's outermost shell may also be lost after the removal of valence electrons. Such elements therefore indicate two or more different valencies i.e. they have variable valentia.

Answer 2

Answer:

So one or more electrons from the core's outermost shell may also be lost after the removal of valence electrons. Such elements therefore indicate two or more different valencies i.e. they have variable valentia.