Extreme oxidation states of americium

The unveiled states of americium

“…However, states +2 to +7 have been reported experimentally, and even Am(viii) has been suggested as being potentially accessiblealbeit somewhat speculatively 4 .…”

“…After irradiating 238 U with 4 He nuclei they discovered a hitherto unseen low-energy emission -the β-decay of 241 Pu. This process, transforming one neutron into a proton, resulted in an element with atomic number 95 and mass number 241.…”