The reason for greater range of oxidation states in actinoids is attributed to: (NEET 2017) (a) ...

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The reason for greater range of oxidation states in actinoids is attributed to:
(NEET 2017)
(a) actinoid contraction
(b) \( 5 f, 6 d \) and \( 7 s \) levels having comparable energies
\( \mathrm{P} \)
(c) \( 4 f \) and \( 5 d \) levels being close in energies
W
(d) the radioactive nature of accinoids
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