WebbThe iodine-131 has a half-life of 8.02 days (692928 sec), and therefore its decay constant is: Using this value for the decay constant, we can determine the activity of the sample: 3) and 4) The number of iodine-131 atoms that will remain in 50 days (N 50d ) and the time it will take for the activity to reach 0.1 mCi can be calculated using the decay law: WebbClick here👆to get an answer to your question ️ Half life period of 53 I^125 is 60 days. Percentage of radioactivity present after 180 days is ? ... Verified by Toppr. Correct option is D) Radioactive reactions follow first order kinetics. Half-life period of a reaction is the time required for the reaction to be half completed.
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WebbExample 2: Find the value of the decay constant of a radioactive substance having a half-life of 0.04 seconds. Solution: Given half life of the substance is t1 2 t 1 2 = 0.04. The half life formula can be used to find the half life of the substance. t1 2 t 1 2 = 0.693/ λ. http://www.radiopharmaceuticals.info/i-125-hsa.html fashion minst数据集下载
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WebbASK AN EXPERT. Science Chemistry QUESTION 55 After 55 years, what mass (in g) remains of a 200.0 g sample of a radioactive isotope with a half-life of 10.0 years? Item equation/constant: zero: [A]- [A], -kt first: In [A] =in [A}, Integrated Rate Laws second: +kt O 0.22g O 4.4 g O 51 g O 170 g. QUESTION 55 After 55 years, what mass (in g ... WebbThere are 37 known isotopes of iodine (53 I) from 108 I to 144 I; all undergo radioactive decay except 127 I, which is stable. Iodine is thus a monoisotopic element.. Its longest … Webb1 juli 2024 · No matter what the half-life of a medication is, it takes about four times that amount of time for the concentration of the drug to reach a steady state in the body. This means that if you begin taking a medication with a half-life of 24 hours, after four days, or on the fifth day, the rate of intake of the drug will approximately equal the rate of … free win 10 32 bit download