Question

Explain the anomalous oxidation states of +2 and +4 shown by some element in the lanthanide series

Answer 1

Explanation:

• Lanthanides are the rare earth elements of the modern periodic table, which include elements with atomic numbers ranging from 58 to 71 after Lanthanum.
• Because the occurrence of these elements is extremely rare, they are referred to as rare earth metals.
• Because the +2 oxidation state is the most stable in the lanthanide family.
• +2 oxidation state ions tend to lose one electron to form the +3 oxidation state, while +4 oxidation state ions gain an electron to become stable.

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