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Chemistry
The actinoids showing +7 oxidation state are
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Q. The actinoids showing $+7$ oxidation state are
The d-and f-Block Elements
A
$U$, $Np$
4%
B
$Pu$, $Am$
10%
C
$Np$, $Pu$
84%
D
$Am$, $Cm$
2%
Solution:
$Np$ and $Pu$ in $[NpO_6]^{5-}$ and $[PuO_6]^{5-}$ oxoanions show $+7$ oxidation states which are not so stable.