Question

what is variable valency? give two examples of elements showing variable valency.​

Answer 1

• Variable Valency. Certain elements combine with other atoms, donating, accepting or sharing electrons in different proportions depending on the nature of the reaction.

Answer 2

Answer:

Explanation:

Sometimes, same element may exhibit one valency in one compound and another valency in other compound. This property is called as variable valency.

Example

Element

Symbol

Valencies exhibited (variable valencies)

Copper

Cu

1, 2

Cu+1, Cu+2

Silver

Ag

1, 2

Ag+1, Ag+2

Gold

Au

1, 3

Au+1, Au+3

Iron

Fe

2, 3