How many electrons occupy the t2g orbitals in [Cr(NH₃)6]3+? (Cr atomic number = 24)
Cr₃+ (d3) in [Cr(NH₃)6]3+ (octahedral) with moderate field NH₃ has t2g3, so 3 electrons.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Isomerism - Geometrical Isomerism in Coordination Compounds