radionuclide
radio-
Ra
radioactive material
Es
E
radioosmium
einsteinium
atomic number 99
gamma decay
yttrotantalite
radioactive
plutogenic
carnotite
yttriferous
radiodecay
radioplatinum
radioactive disintegration
radiorubidium
nuclear disintegration
nuclear decay
pluto-
thorianite
radioisotope
radionickel
atomic number 96
americium
nuclear fuel
Cm
atomic number 85
radioactivating
atomic number 95
curium
masuyite
Fm
Am
astatine
At
fermium
uranium 238
atomic number 100
polycrase
element 113
atomic number 97
berkelium
Uut
ununtrium
actino-uranium
atomic number 113
Bk