[mycotheologist]

Heres a question on my sample exam paper:

which has me confused. So the free ions ground state term is ⁴F. I can see that it correlates to a ground state term of ⁴A₂ so I know that the UV-Vis spectrum will have 2 absorbance peaks corresponding to jumps between ⁴A₂ and the excited terms with the same spin multiplicity which are ⁴T_2g and ⁴T_1g. I can probably figure out the proportion of these peaks energies too but whats confusing me is how the ground state term is down at -12 Dq. If I'm not mistaken, t_2g orbital electrons are located at -4 Dq. Which is it, -12Dq or -4Dq?