Question

Identify all transition metals "M" that satisfies the requirement given: [M(H2O)6]3+ having one unpaired electron

Identify all transition metals "M" that satisfies the requirement given:

[M(H2O)6]3+ having one unpaired electron

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Answer #1

Ans = Ti

[M(H2O)6]3+ having one unpaired electron.

Ti = 4s2 3d2

Ti3+ = 3d1

Ti3+ has one unpaired electron.

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Remaining transition metals do not satisfies te given condition.

Ex:

- V = 4s2 3d3

V3+ = 3d2 2 unpaired electrons

- Cr = 4s1 3d5

Cr3+ = 3d3 3 unpaired electrons

- Mn= 4s2 3d5

Mn3+ = 3d4 4 unpaired electrons

- Fe = 4s2 3d6

Fe3+ = 3d5 5 unpaired electrons

- Co = 4s2 3d7

Co3+ = 3d6 4 unpaired electrons

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