50. Selenium-82 undergoes double beta decay: Se - Kr + 2 je¯ + 27 This low-probability process occurs with a half-life of 3.5 x 1027 s, one of the longest half-lives ever measured. Estimate the activity in an 82.0-g (1.00 mol) sample of this isotope. How many 82Se nuclei decay in a day?

50. Selenium-82 undergoes double beta decay: Se - Kr + 2 je¯ + 27 This low-probability process occurs with a half-life of 3.5 x 1027 s, one of the longest half-lives ever measured. Estimate the activity in an 82.0-g (1.00 mol) sample of this isotope. How many 82Se nuclei decay in a day?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: ng radioactive isotopes is the most stable

Q: Barium-142 is an beta emitter with a half-life of 11.0 min. If we start with 2.500 g of 142Ba, what…

A: The number of half-lives (n) can be calculated as

Q: The following reaction represents what nuclear process? 214 Pb 214 Bi + 82 83 A. positron emission…

A: The various nuclear processes are discussed belowPositron emission: In this process, the mass number…

Q: Moonrock collected by a US Apollo mission is estimated to be 4.30 billion years old by uranium/ lead…

Q: How much time in minutes would it take for a 2.301 g sample of 3H to decay to a mass of 1.789 g if…

A: The initial concentration (N0), final concentration (N), and time (t) required to convert the…

Q: A radioactive sample contains 1.55 g of an isotope with a half-life of 3.8 days. What mass of the…

A: The process in which energy is lost by unstable atomic nucleus via radiation is known as radioactive…

Q: Bi-191 has a half-life of only about 12 seconds. A large radioactive sample contains only 6.2 x 109…

A: Half life of Bi-191 = 12 sNumber of atoms of Bi-191 = 6.2 x 109 atomsNumber of moles of Bi-191 = ?…

Q: -33. The number of radioactive nuclides in a sample decays from 1.00 × 1020 to 2.50 × 10º in 10.0…

Q: Fluorine-18 is a radioactive isotope commonly used in medicine. It has a half-life of 110 minutes.…

Q: Calculate how long will it take for a sample of a radionuclide with a half-life of 30.9 days decay…

Q: A patient is given 0.050 mg of technetium-99m, a radioactive isotope with a half-life of about 6.0…

A: Given,0.050 mg of technetium-99m,Half-life is 6.0 hours.1.0×10-3 mg

Q: Potassium-argon dating is used to measure the age of rocks formed from cooled lava by determining…

A: Given, Potassium-40 decays into 40Ca ( 89.1 % of the time ) and 40Ar ( 10.9 % of the time ) Half…

Q: A patient is given 0.050 ug of technetium-99m, a radioactive isotope with a half-life of about 6.0…

A: Given: Mass of technetium-99m = 0.050μg half life= 6.0 h Mass of technetium to decay= 1.0×10-3μg

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 4.4 g remain. What is the original…

A: The Answer to the following question is-

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 3.0 g remain. What is the original…

Q: Hospitals use radioactive tracers in many medical tests. After the tracer is used, it must be stored…

A: Given, The proportion of radioactivity remaining after t days is e−0.087t.

Q: A radioactive isotope has a half life of 17.1 minutes. How long will it take for the radiation from…

A: Radioactive decay follow first order kinetics

Q: Find the activity of a sample containing 1.51 x 10-6 g of 6027(Co) (T1/2 = 5.27 years).

Q: 60Co has a half-life of 5.27 yr. What percentage of its original activity will a sample of 60Co have…

A: Dear student,I am providing solution for Q.1 that you have asked as we are entitled to do one…

Q: A 26.00-g sample of water containing tritium, 31H, emits1.50 x 103 beta particles per second.…

A: In radioactive decay, radioactive atom's nuclei (unstable) eject energy as well as charged particles…

Q: The radioactive nuclide P# has a half-life of 14.3 days. How long would a waste containing 10 mg/L…

A: Answer: Radioactive reactions are first order reactions, therefore integrated rate law of first…

Q: Gallium-65 has a half-life of 15.2 minutes. a. How long would it take for 99.0% of a sample of this…

Q: Part 1 The half-lives of 235U and 23$U are 7.04 x 10° years and 4.47 x 10° years, respectively, and…

Q: The half-life of the radioisotope 63 Eu 158 is 1.0 hour. How many hours will the decay of 160-g…

A: Half life of first order reaction is independent of initial concentration

Q: A radioactive isotope has a half life of 16.9 minutes. How long will it take for the radiation from…

Q: In the next step of the neptunium-237 decay series, very unstable francium-221 is produced. Given…

A: We know that the radioactive decay follow first order reaction.

Q: If the half-life of a radioactive isotope is 32 days, how many half-lives must pass before a 3.0…

A: Radioactive decay follows the first-order kinetics. The half-life of the first-order reaction does…

Q: How old is a rock that contains 0.065 g of uranium-238 (t₁/2 = 4.5 x 10⁹ years) and 0.023 g of…

Q: For a gamma scan of a liver, a patient ingests a 15 MBq sample of 99Tc*. It decays with a 6.0 hour…

A: Option D) We expect the 35p to decay by beta-minus. The daughter nucleus is 355.

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 4.00 billion years old by…

Q: 4. Complete each of the following nuclear equations AHe 2 56 Mn + 59 Co ? + 27 a.

Q: What kind of nuclear radiation is this? 65 65 0 952 Ky → 9³L + e 32 33 -1

A: Here we are required to find the kind of nuclear radiation .

Q: A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013…

Q: The radioactive isotope 212Pb has a half-life of 10.64 h. A sample containing this isotope has an…

Q: Macmillan Learning A 210.2 ng sample of an unknown radioactive substance was placed in storage and…

A: All radioactive decay follow first order kinetics For 1st order reaction At = Ao/2n Where n =…

Concept explainers

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.

Question

50. Selenium-82 undergoes double beta decay:
Se - Kr + 2 je¯ + 27
This low-probability process occurs with a half-life of
3.5 x 1027 s, one of the longest half-lives ever measured.
Estimate the activity in an 82.0-g (1.00 mol) sample of this
isotope. How many 82Se nuclei decay in a day?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 6 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Iodine-131 is a radioactive isotope. After 5.00 days, 65.0% of a sample of 131 I remains. What is the half-life, t1/2, of 1311? t1/2 = R F G Search or type URL % 5 T G B MacBook Pro 6 Y H & V N U J * 00 M I K 9 V. O < O L command P option { [ ? 1
A radioactive isotope has an activity of 9.94×104 Bq initially. After 3.35 hours the activity is 5.96×104 Bq. What is the half-life of the isotope? What is the activity after an additional 3.35 hours?
Ruthenium-106 (^ 106 Ru) is used to treat melanoma in the eye. This isotope decays by Beta ^- with a half-life of 373.59 days One source of the isotope is reprocessed nuclear reactor fuel . A) How many protons and how many neutrons does the Ru nucleus contain? B) Identify the missing daughter nucleus in the β– emission decay of 106ru below. D)How many years is implanted in the eye deres it take for its decay rate (or activity) to be reduced to 22.5% of the initial decay rate ? Use 1 year = 365 days. time : days
A patient is given 0.050 mg of technetium-99m, a radioactive isotope with a half-life of about 6.0 hours. How long does it take for the radioactive isotope to decay to 1.0 * 10^-3 mg? (Assume the nuclide is not excreted from the body.)
A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013 disintegrations per 20 min. What percentage of the nuclide will have decayed after 200 days? How many atoms of nuclide will remain in the sample? What is the half-life of the nuclide?
A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013 disintegrations per 20 min. What percentage of the nuclide will have decayed after 200 days? How many atoms of nuclide will remain in the sample? What is the half-life of the nuclide?
Am-241 is a radioactive isotope that decays by alpha emission. Each alpha particle emitted carries 8.79E-13 J of kinetic energy.A 80.0 kg worker is accidentally exposed to a sample of Am-241 having an activity of 0.0250 curies for a total of 10.00 minutes. During that time the workers body absorbs 2.50 percent of the alpha particles emitted by the sample.How many alpha particles were emitted by the sample during the time of the workers exposure? Answer: alpha particles emittedHow many joules of energy were absorbed by the worker? Answer: JoulesThe alpha particles emitted by the sample have an RBE=20. Calculate the workers exposure in millirems. Exposure = _____ millirems
Please Help with HW
2. Xenon-125 undergoes radioactive decay. The half-life of the decay is 16.9 hours. How much of a 55 mg xenon-125 sample remains after 95 hours?
Bi−210 is a beta emitter with a half-life of 5.0 days If a sample contains 1.0 g of Bi−210, how many beta emissions would occur in 5.0 days?