What is the valency of copper?

Dear Student,

Copper has variable valency +1 and +2. Due to variable oxidation state, it is placed in transition elements. When copper is in +2 oxidation state, it is called cupric ion. For example: copper sulfate (CuSO4)

Copper in +1 oxidation state is called cuprous ion. For example: cuprous oxide (Cu2O).

Hope it helps!

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 Cu2+

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can u show me how to do dat i mean method

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 i don't know it.............but it has something to do with neutrons n protons

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 plz tell soon 

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ok ssgirlygirl if u get it then plz tell me 

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for valency if u know  atomic mass then u can surely get the futher information

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 k i got it

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