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Give reason : a) Cerium (Ce) exhibits ...

Give reason :
a) Cerium (Ce) exhibits `+4` oxidation state.
b) Actinoid contraction is greater from element to element than lanthanoid contraction.

Text Solution

Verified by Experts

a) Attaining extra stability of empty f orbital
OR
`Ce^(+4)` is favoured by its noble configuration
OR
Stable noble gas configuration of Xenon.
(b) Poor shielding by 5f electrons
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