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Oxidation States of Actinides

The actinoids...

Question

The actinoids which shows +7 oxidation state are:

A

U, Np

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B

Pu, Am

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C

Np, Pu

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D

Am, Cm

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Solution

The correct option is B Np, Pu
As we move from left to right in a row of actinoid, oxidation state first increases than reaches maximum (in middle of row) and than decreases so Np, Pu will show +7 oxidation state.

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Q. The actinoids showing +7 oxidation state are:

Q. Which of the following actinoids show oxidation states up to +7?

Q. Give reasons:
(i) Mn shows the highest oxidation state of +7 with oxygen but with fluorine it shows the highest oxidation state of +4 .
(ii) Transition metals show variable oxidation states.
(iii) Actinoids show irregularities in their electronic configurations.

Q. Why do actinoids show a wide range of oxidation states? Write one similarity between the chemistry of lanthanoids and actinoids.

Q. Actinoids in general show more oxidation states than the lanthanoids. The main reason for this is:

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Oxidation States of Actinides

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