Half-Lives Flashcards
1
Q
Cesium-137, Cs-137
A
30 yrs
2
Q
Cobalt-60, Co-60
A
5.26 yrs
3
Q
Carbon-14, C-14
A
5730 yrs
4
Q
Iodine-125, I-125
A
59.4 days
5
Q
Iodine-131, I-131
A
8 days
6
Q
Iridium-192, Ir-192
A
73.83 days
7
Q
Gold, Au-198
A
3 days
8
Q
Palladium-103, Pd-103
A
17 days
9
Q
Ruthenium-106, Ru-106
A
367 days
10
Q
Radium-226, Ra-226
A
1622 yrs
11
Q
Strontium-90, Sr-90
A
28.9 yrs
12
Q
Technetium-99m, Tc-99m
A
6 hrs
13
Q
Uranium-238, U-238
A
4.5 billion yrs
14
Q
Phosphorus-32, P-32
A
14.3 days
