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Write down the number of 3d electrons in...

Write down the number of 3d electrons in each of the following ions : `Ti^(2+), V^(2+), Cr^(3+), Mn^(2+), Fe^(2+), Co^(2+), Ni^(2+)` and `Cu^(2+)`. Indicate how would you expect the five 3d orbitals to be occupied for these hydrated ions (octahedral).

Text Solution

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(i) `Ti^(2+) : 3d^(2)`
For hydrated ions there will be occupied as

This is because water forms high spin or outer orbital complexes. The inner d-orbitals remains undisturbed.
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