Using the computer format give the electron configuration for?

Question

The computer writes electron configurations in the form, for Fe for example, [Ar]4s(2)3d(6)

which we would write [Ar]4s23d6

Using the computer format give the electron configuration for


Cu2+

Hint: Remember you have cations with near-degenerate 4s and 3d orbitals

Answer 1

It seems that you understand electron notation. Why is this difficult for you? Just look up the electron notation for normal copper and keep in mind that this ion has lost 2 electrons (it has lost the 4s2 electrons)