Answer:
Option D
Explanation:
The highest oxidation state in plutonium (Atomic number=94) is +7. It can show a greater range of oxidation states which (in part) is attributed to the fact that 5f, 6d and 7s levels are of comparable energies. Plutonium (Pu) can show oxidation state of +3,+4, +5,+6 and +7 in its compound
