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Radioisotopes Half Lives

Time for isotop radiation to be reduced with 50%.

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RadioisotopHalf Life
secondsminuteshoursdaysyears
110Ag 24.6
241Am 432.2
243Am 7370
198Au 6.18
133Ba 10.53
140Ba 12.75
7Be 53.28
210Bi 5.01
82Br 35.304
14C 5715
45Ca 162.7
109Cd 462
144Ce 284.6
36Cl 301000
242Cm 162.8
244Cm 18.11
60Co 5271
51Cr 27.7
134Cs 2065
137Cs 30.3
64Cu 12.701
55Fe 2.73
59Fe 44.51
72Ga 14.10
68Ge 270.8
3H 12.32
203Hg 46.61
131I 8.04
115In 440 x 1012
192Ir 73.83
40K 1.26 x 109
42K 12.36
85Kr 10.73
140La 40.27
54Mn 312.2
99Mo 2.7476
22Na 2.605
24Na 14.96
63Ni 100
237Np 2.14 x 106
32P 14.28
210Pb 22.6
103Pd 16.99
109Pd 13.43
147Pm 2.6234
210Po 138.38
144Pr 17.28
232Pu 34.0
233Pu 20.9
234Pu 8.8
235Pu 25.3
236Pu 2.87
237Pu 45.2
238Pu 87.74
239Pu 24110
240Pu 6537
241Pu 14.4
242Pu 375000
243Pu 4.956
244Pu 82 x 106
245Pu 10.5
246Pu 10.85
86Rb 18.65
87Rb 48.8 x 109
102Rh 2.9
106Rh 29.9
106Ru 1.020
35S 87.2
243Sb 2.758
46Sc 83.81
85Se 119.78
32Si 160
113Sn 115.1
89Sr 50.52
90Sr 29.1
182Ta 114.43
99Tc 213000
123Te 13 x 1012
201Tl 72.912
170Tm 128.6
222U 1 x 10-6
225U 0.08
226U 0.5
227U 1.1
228U 9.1
229U 58
230U 20.8
231U 4.2
232U 68.9
233U 159000
234U 245000
235U 704 X 106
236U 23.4 x 106
237U 6.75
238U 4.46 x 109
239U 23.5
240U 14.1
242U 16.8
50V 140000 x 1012
90Y 2.67
65Zn 243.8
95Zr 64.02
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