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Question
The number of unpaired electrons present in [Cr(NH3)6]3+ is ______.
Fill in the Blanks
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Solution
The number of unpaired electrons present in [Cr(NH3)6]3+ is 3.
Explanation:
For the complex [Cr(NH3)6]3+:
- Chromium (Cr) has atomic number 24.
- In Cr3+, the configuration is [Ar] 3d3.
- NH3 is a moderate field ligand, so it does not pair the 3d electrons.
Thus, Cr3+ has 3 unpaired electrons.
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