Question

What is the electron configuration for the transition metal ion in each of the following compounds?

[Ni(H2O)6]Br2
[Cr(H2O)4(NO2)2]I

Answer 1

1)Ni=1s2, 2s2, 2p6, 3s2, 3p6, 4s0, 3d10 called full-filled

2)Cr=1s2, 2s2, 2p6, 3s2, 3p6, 4s1, 3d5 called half-filled