Give the octahedral as well as tetrahedral field electronic configuration for Cr3+and Co3+ ions. Which site will be preferred by these ions, octahedral or tetrahedral? Justify your answer.
The electronic configuration of an ion depends on the arrangement of its electrons in a crystal field, which can be either octahedral or tetrahedral.
For Cr³⁺ (Chromium ion):
- Atomic number of Cr = 24
- Electronic configuration of Cr = [Ar] 3d⁵ 4s¹
- Cr³⁺ ion: After losing three electrons → [Ar] 3d³
Octahedral Field Configuration (Cr³⁺)
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