Pu-240/Pu-239  search
BTisotopes
 .radioactive isotopes
 ..Pu-240/Pu-239
BTmetals
 .actinides
 ..plutonium
 ...Pu-240/Pu-239
RTisotope ratios
 Pu-239
 Pu-240
SNThis term has multiple hierarchies.