CBSE Class 9 Answered
What is variable valency? Name three elements exhibiting variable valency.
Asked by Topperlearning User | 29 Mar, 2016, 04:38: PM
Expert Answer
Variable Valency
Sometimes, the same element may exhibit one valency in one compound and another valency in other compound. This property is called 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 |
Fe+2, Fe+3 |
Answered by | 29 Mar, 2016, 06:38: PM
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