Question

how are elements with variable valency named ? explain with an example...​

Answer 1

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If an element exhibits two different positive valencies, then

1.For the lower valency, use the suffix -OUS at the end of the name of the metal

2.For the higher valency, use the suffix -IC at the end of the name of the metal.

Answer 2

Answer:

For example, the valency of Hydrogen is 1 as it has one electron in its outermost shell and requires one electron to become stable. Some elements differ in their capacity to combine with other elements depending on the nature of the reaction; this property is called variable valency.