SimilarityRank
polonium-210 0.849 71984
caesium-137 0.832 59747
caesium 0.832 37760
radioactivity 0.830 14083
beryllium 0.830 52345
iodine-131 0.815 51608
radio-active 0.812 71832
strontium-90 0.808 87007
rbmk 0.805 73850
kiloton 0.804 58161
calorimeter 0.798 56876
tritium 0.798 26341
radionuclide 0.789 25560
windscale 0.788 22783
thermonuclear 0.781 25747
helium-3 0.781 45115
alloprene 0.780 83778
carbon-14 0.779 58995
naturally-occurring 0.778 73009
anthropogenic 0.774 51620
ionize 0.774 32044
radium 0.773 42478
fbr 0.771 69198
tropospheric 0.770 67421
high-velocity 0.770 66843