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