Answer: -2.4 Delta o.
- A -2.4 Delta<sub>o</sub>
- B -1.6 Delta<sub>o</sub>
- C -0.4 Delta<sub>o</sub>
- D -1.2 Delta<sub>o</sub>
Correct answer: A. -2.4 Delta<sub>o</sub>
Explanation: Low-spin d<sup>6</sup> is t<sub>2g</sub><sup>6</sup>e<sub>g</sub><sup>0</sup>. CFSE = 6(-0.4) + 0(+0.6) = -2.4 Delta<sub>o</sub> (pairing energy is added separately).
The three common coordination geometries: octahedral (6 ligands), tetrahedral (4 ligands), and square planar (4 ligands in one plane).
Concept context
Study of compounds where a central metal atom is bonded to surrounding ligands. Covers nomenclature, types of isomerism, bonding theories (VBT, CFT), and applications in medicine, photography, and industry.