The most common oxidation state of Actinoids is : (a) +4 (b) +2 (c) +6 (d) +3

Question 63 of 72

Q. The most common oxidation state of Actinoids is :

(a) +4

(b) +2

(d) +3

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Although actinoids display a wider range of oxidation states than lanthanoids (due to the close energies of 5f, 6d, and 7s orbitals), the +3 state remains the single most common oxidation state throughout the actinoid series.

Actinoids ( $_{90}Th$ to $_{103}Lr$ ) show more variable oxidation states than lanthanoids (e.g. Th commonly +4, U up to +6, Np/Pu/Am up to +6/+7) because the 5f, 6d and 7s orbitals lie close in energy, so more electrons can participate in bonding. Even so, as one moves across the series (particularly for the later, heavier actinoids from curium onward), the +3 oxidation state becomes progressively the most stable and most commonly observed state, ma …

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Q.The most common oxidation state of Actinoids is :

Concept understanding — Electronic Configuration and Oxidation States of Actinoids

Q.The most common oxidation state of Actinoids is :

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