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Why do actinoids show a wider range of oxidation states than lanthanoids?
AThey have no 5f electrons
B5f, 6d, 7s energies are close
C4f lies far below 5d
DTheir 7s shell is empty
Answer & Solution
Correct answer: B. 5f, 6d, 7s energies are close
Because 5f, 6d and 7s levels have comparable energies, varying numbers of electrons can be used.
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