What is the number of 3d electrons of the transition metal ion in the following complex (en = 1,2-diaminoethane): [Co(en)2C12] Select one: 05 8 7 6 X 9 What is the number of 3d electrons of the transition metal ion in the following complex (en = 1,2-diaminoethane): [Fe(en)3]C13 Select one: 5 6 x 8 4 3