25. The free ion V3+ has a 3F ground state term. The 1D and 3P terms lie respectively, at 10680cm- 1 and 12920 cm-1 above 3F. The energies of the terms are given in terms of Racah parameters as: E(3F) = A - 8B, E(3P) = A + 7B, E(10) = A- 3B + 2C, Calculate the value of B for V3+ ? * (2 Points) 640 cm-1 4680 cm-1 712 cm-1 10680 cm-1 780 cm-1