P & P I > Half Lifes > Flashcards
radium-226
1622 yr
cobalt-60
5.27 yr
cesium-137
30 yr
iridium-192
73.83 days
gold-198
2.7 days
iodine-125
59.4 days
palladium-103
17 days
strontium-90/yttrium-90
28.9 yr
phosphorous-32
14.3 days
ruthenium-106/rhodium-106
367 days