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The f⁴ term symbol for a d³ configuration has a multiplicity of 2S+1 = 5 (since S = 2) and an L value of 3 (since f corresponds to L = 3). The number of microstates for a given term symbol is determined by the degeneracy of the term, which is given by (2L+1)(2S+1). Therefore, the f⁴ term symbol has a degeneracy of (2
3+1)(2
2+1) = 35 microstates.