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a) The half-life of iodine-125 is 59.4 days. If the initial mass of iodine-125 is 128ug, what mass of iodine-125 will be
Posted: Mon May 16, 2022 6:10 pm
by answerhappygod
- A The Half Life Of Iodine 125 Is 59 4 Days If The Initial Mass Of Iodine 125 Is 128ug What Mass Of Iodine 125 Will Be 1 (13.05 KiB) Viewed 61 times
a) The half-life of iodine-125 is 59.4 days. If the initial mass of iodine-125 is 128ug, what mass of iodine-125 will be remaining297 days later? (Hint - consider this length of time in terms of the number of half-lives). b) Radioactive source A has an initial activity of 3.42 x 104 Bq and a decay constant of 4.17 x 10-954. Radioactive source B has an activity of 5.52 x 104 Bq and a decay constant of 8.05 x 10-954. 1) Which of the two sources will have the highest activity after 4 years. (1 year = 3.154 x 107 s)? ii) How many years will it take source A to reach an activity of 1.00 x 10+ Bq? (3.3]