Bundle: Sustainable Energy, 2nd + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
2nd Edition
ISBN: 9781337896535
Author: Richard A. Dunlap
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 5, Problem 14P
At t = 0 there are 4.11 × 1011 nuclei of a particular nuclide in a sample. The decay rate is measured to be 3.21 × 106 s−1. Calculate the half-life.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Find the average binding energy per nucleon of 2 Mo and 82 Kr. (For the atomic masses, see this table. Enter your answers to at least two decimal places.)
42
36
(a)
92 Mo
42
MeV/nucleon
82
(b)
Kr
36
MeV/nucleon
Application of Differential Calculus
A zircon sample contains 4000 atoms of the radioactive element 235U given that 235U has a half-life of 700 million years, how long would it take to decay to 125 atoms?
Application of Differential Equation
A zircon sample contains 4000 atoms of the radioactive element 235U given that 235U has a half-life of 700 million years, how long would it take to decay to 125 atoms?
Chapter 5 Solutions
Bundle: Sustainable Energy, 2nd + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
Ch. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - A sample of 137Cs (half-life = 30.1 years) decays...Ch. 5 - Prob. 4PCh. 5 - What are the decay products of the decay of the...Ch. 5 - Prob. 6PCh. 5 - Nuclide A has a half-life of 4 days, and nuclide B...Ch. 5 - 64Cu can decay by both decay and + decay. Draw an...Ch. 5 - At time t = 0 a sample contains 3.57 108 nuclei...Ch. 5 - Prob. 10P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- At time t = 0 a sample contains 3.57 108 nuclei of a particular nuclide. Exactly one year later the sample contains 3.09 108 nuclei of the same species. Calculate the half-life of the decay.arrow_forwardThe measured decay rates of a radioactive material as a function of time are shown in the table below. (a) Calculate the half-life of the decay. (b) Show that a semilogarithmic plot of the decay rate as a function of time is linear. (c) Derive an analytical form of the linear relationship for part (b).arrow_forwardA sample of 137Cs (half-life = 30.1 years) decays at a rate of 1010 decays per second. How long will it take the decay rate to decrease to 107 decays per second?arrow_forward
- Nuclide A has a half-life of 4 days, and nuclide B has a half-life of 16 days. At the beginning of an experiment, a sample contains 218 nuclei of nuclide A and 212 nuclei of nuclide B. How long will it take before the numbers of nuclei of the two nuclides are equal?arrow_forwardA moon rock collected by a U.S. Apollo mission is estimated to be 4.40 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of 0Pb in the rock, if it currently contains 1.460 g of 238 U? The half-life of 238U is 4.47 x 10° years. 206 Pb mass:arrow_forwardWe have an initial amount of H3N2Cl4 of 72 milligrams, and a half-life of 60 days. Find the decay constant, k, and determine how long it takes for 95% of the material to decay.arrow_forward
- The concentration of a certain chemical in a sealed tank follows the expression C(t) = Co exp (-kit), where kı is the decay constant of this chemical in hours'. Rewrite this equation for C(t) as a function of only the half-life t12 as a given constant.arrow_forward3. A certain radioactive material is known to decay at a rate proportional to the amount present. If initially there is 50 mg of the material present and after 2 hours it is observed that the material lost 20% of its original mass, a) find the mass of the material after 5 minutes, and b) the time at which the material has decayed to one-half of its initial mass.arrow_forwardAn elementary particle produced in a laboratory experiment travels 0.319 mm through the lab at a relative speed of 0.953c before it decays (becomes another particle). (a) What is the proper lifetime of the particle? (b) What is the distance the lab travels as measured from the particle's rest frame? (a) Number i Units (b) Number i Unitsarrow_forward
- What is the term for the process by which a radioactive nucleus emits an alpha particle consisting of two protons and two neutrons? a) Alpha decay b) Beta decay c) Gamma decay d) Electron capture.arrow_forwardInitially, there is 50 mg of a certain radioactive material present and after two hours, it is observed that the material has lost 10% of its original mass. Find: a) the mass of the material after 4 hours b) the time at which the mass has decayed to one-half of its initial mass (half-life of the material)arrow_forwardQuestion 1 An atom in the ground state O has all electrons in the n 1 orbit O has all electrons in the lowest energy orbits possible O is finely divided O will not absorb electromagnetik radiation of any wavelength Question 2 Which of the following transitions in the Bohr hydrogen atom model affords emission of the highest-energy photon? (R, = 2.18 x 10 1ª j) Oni-6 1 O ni-1+nf-6arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
The Science Inside Concrete Binders; Author: Dow;https://www.youtube.com/watch?v=GZq3Cyn2mVE;License: Standard Youtube License