What is the electronic formula of the atom of the copper and its +2 ion? Show if they are paramagnetic or diamagnetic.Compare the sizes of the atom of the copper and its ion
... Electron configurations: Cu ....... 1s2, 2s2 2p6, 3s2 3p6 3d10, 4s1 Cu+ ..... 1s2, 2s2 2p6, 3s2 3p6 3d10 Cu2+ ... 1s2, 2s2 2p6, 3s2 3p6 3d9 In the solid state copper metal is diagmagnetic despite the apparent unpaired electron because of metallic bonding, but as a gas copper atoms are paramagnetic. In the gaseous state Cu+ ions are diamagnetic and Cu2+ ions are paramagnetic. Cu+ is unstable in aqueous solutions. It undergoes disproportionation to form copper metal and Cu2+(aq). Cu2+(aq) is paramagnetic due to the unpaired electrons.
