Question

(b) How are the elements with variable valency named ?
Explain with an example.​

Answer 1

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

Mark above as brainlist.