E McMillan-G Seaborg 1944 (Nobel 1951) Np + Pu transuranium; modern Z=118 oganesson 2002 + island-of-stability search Z=120-126.
E McMillan-G Seaborg 1944 (Nobel 1951) Np + Pu transuranium; modern Z=118 oganesson 2002 + island-of-stability search Z=120-126.