Copper(II) nitrate. I hope I cleared your doubt
The name is copper(II) nitrate. Explanation: The name of ionic compounds is written by first writing the name of the cation followed by its oxidation state in square brackets, then the name of the anion is written without any suffix. Thus, the copper cation is first written as calcium followed by the oxidation state as (II) and then the anion which is nitrate. So the name is copper(II) nitrate.
the formula can be rewritten as Cu1(NO3)2 if you take the indices 1 and 2 and make them the opposite ionic charges, you have: Cu^2 (NO3)^1 Since the cation is always written first ionic compounds, Cu has a 2+ charge and the anion is written second, so NO3 has a 1- charge: Cu^2+ (NO3)^1- Cu is copper, but it is a transition metal, meaning that it may have more than one charge. copper can have a 1+ or 2+ charge (usually) in this case it has a 2+ charge so you must indicate that in the name using a Roman numeral after the name: copper(II) NO3^1- is a polyatomic anion and has a fixed charge and a (searchable) name: nitrate combine the two names and don’t forget the Roman numeral: copper(II) nitrate
Copper(ii) nitrate is the name
If you ionize it will be easier:Cu²⁺ is the copper(II) cationNO₃⁻ is the nitrate radical (polyatomic ion)Hence copper(II) nitrate
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