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What would the term symbol be for a transition metal ion of d2 configuration of maximum multiplicity
Accepted Answer
The term symbol for a transition metal ion with a d2 configuration of maximum multiplicity is 3F. Here's why:
d2 configuration: Means the ion has two electrons in its d orbitals.
Maximum multiplicity: Refers to the highest possible spin multiplicity, which is determined by Hund's rule.
Hund's Rule: States that electrons will individually occupy each orbital within a subshell before pairing up. This leads to the maximum number of unpaired electrons, resulting in the highest spin multiplicity.
Determining the Term Symbol:
1. Spin multiplicity (2S+1): With two unpaired electrons (S = 1), the spin multiplicity is 2(1) + 1 = 3.
2. Total orbital angular momentum (L): In a d2 configuration, the maximum L value is 2 (since the individual orbital angular momenta can add up). This corresponds to an 'F' term (L = 0, 1, 2, 3,... correspond to S, P, D, F, ... terms).
Therefore, the term symbol is 3F.
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