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CBSE Class 10 Answered

How can I remember the valency of an element, for eg. Copper could be +2 or +3?
Asked by icyfox | 11 Jul, 2010, 12:00: AM
answered-by-expert Expert Answer
You will have to learn it. Wite all the valencies together at one place and revise regularly.
Answered by | 14 Jul, 2010, 04:51: PM

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CBSE 10 - Chemistry
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