Chemistry · d- and f-Block Elements
The reason for the greater range of oxidation states in actinoids compared to lanthanoids is attributed to:
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- 15f, 6d and 7s levels having comparable energies✓
- 2Actinoid contraction
- 3The radioactive nature of actinoids
- 44f and 5d levels being close in energies
Correct answer
5f, 6d and 7s levels having comparable energies
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