40 The half-life of a radioactive isotope is 693 s.Which of the following is the probability that a nucleus of the isotope will decay in the next second? A A 1/1000 B 1000 C 1000 In2 D 1/1000 In2 相关知识点: 试题来源:
What fraction of a radioactive sample will remain after 2.5 days if the half life is 114 hours? a) 0.10 b) 0.40 c) 0.18 d) 0.45 What fraction of a sample of Phosphorus-32 is left after 64.26 days? (The half-life of phosphorus-32...
Half-Life=0.693RateConstantofChemical Answer and Explanation:1 Given: The isotope is 239 Pu The half-life of the isotope ist12=24,100years The amount after {eq}t=10,000\... Learn more about this topic: Half-life & Radioactive Decay | Equation, Calculations & Graphs ...
The correct Answer is:C To solve the problem of how much fraction of a radioactive material remains after 30 days given its half-life of 10 days, we can follow these steps: Step 1: Understand the concept of half-lifeThe half-life of a radioactive material is the time taken for half ...
18 The radioactive isotope carbon-14 undergoes decay with a half-life of 5730 years.While an organism is living, it takes in carbon from the atmosphere and the ratio of carbon-14 to the stable isotope carbon-12 in the organism is constant. After death the ratio changes, as the carbon-...
What is decay rate in nuclear physics? What is the half-life of a radioactive nuclide? What causes radioactive decay? What are three products of radioactive decay? What is the nuclear equation for the decay of uranium-238? What is the half life of a radioactive isotope?
radioactive half-life [¦rād·ē·ō′ak·tiv ′haf‚līf] (chemistry) half-life McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc. Want to thank TFD for its existence?Tell a friend about us, add a link to this page,...
The life-life ofBi210is5days. What time is taken by(7/8)thpart of the sample of decay ? View Solution The radioactive isotope32Pdecays by first order kinetics and has a half-life of 14.3 days. How long does it take for 95.0% of a given sample of 32 p to decay?
label- a radioactive isotope that is used in a compound in order to trace the mechanism of a chemical reaction iodine-131- heavy radioactive isotope of iodine with a half-life of 8 days; used in a sodium salt to diagnose thyroid disease and to treat goiter ...
a.The initial amount of the isotope that is present in the sample is grams. b.The half-life of this isotope is about years. (Do not round until the final answer. Then round to two decimal places as needed. There are 2 steps to so...