The maximum number of possible oxidation states of actinoides are shown by
Question:

The maximum number of possible oxidation states of actinoides are shown by

  1. berkelium (Bk) and californium (Cf)

  2. nobelium (No) and lawrencium (Lr)

  3. actinium (Ac) and thorium (Th)

  4. neptunium (Np) and plutonium (Pu)


Correct Option: , 4

Solution:

$\mathrm{Np}$ and $\mathrm{Pu}$ show maximum no. of oxidations states starting from $+3$ to $+7$ all oxidation states.

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