[Kitty Kat]

this is a question i need help with:
"Draw the electron configuration of copper. It is easy to see that copper could form a Cu+ ion but how could it form a Cu2+ ion?"
i know copper has 1 electron on its outer shell so i know it can easily form a Cu+ ion but under what circumstances and how does copper form a Cu2+? wouldn't it be unstable if copper lost 2 electrons? can some1 help me out? thanx

[Mitch]

The electon configuration of copper can be found on our periodic table. Link is to your left.