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Maximum multiplicity of d2 config with options a) 1g, 2) 3p, c) 3f, 4) 5d
Accepted Answer
The maximum multiplicity for a d² configuration is 3. Here's why:
Multiplicity: This refers to the number of unpaired electrons in an atom. It's calculated as 2S+1, where S is the total spin angular momentum.
d² Configuration: This means two electrons occupy the d orbitals. To maximize multiplicity, these electrons should be in separate orbitals with parallel spins (Hund's Rule).
Since there are five d orbitals, you can place two electrons with parallel spins in two different orbitals, resulting in two unpaired electrons. This gives us S=1 (since each unpaired electron has a spin of +1/2), and a multiplicity of 2(1)+1 = 3.
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