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

Business, Finance, Economics, Accounting, Operations Management, Computer Science, Electrical Engineering, Mechanical Engineering, Civil Engineering, Chemical Engineering, Algebra, Precalculus, Statistics and Probabilty, Advanced Math, Physics, Chemistry, Biology, Nursing, Psychology, Certifications, Tests, Prep, and more.
Post Reply
answerhappygod
Site Admin
Posts: 899604
Joined: Mon Aug 02, 2021 8:13 am

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

Post 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
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 59 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]
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!
Top
Post Reply

Return to “Archived Questions & Answers”