Suppose that 3x107 radon atoms are trapped in a basement at the time the basement is sealed against further entry of the gas. The half-life of radon is 3.83 days. How many radon atoms remain after 31 days?

Suppose that 3x107 radon atoms are trapped in a basement at the time the basement is sealed against further entry of the gas. The half-life of radon is 3.83 days. How many radon atoms remain after 31 days?

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter13: Nuclear Structure

Section: Chapter Questions

Problem 11Q

See similar textbooks

Related questions

Q: Determine the half-life (in s) of a radioactive sample that has a decay rate of 5.30 x 1011 Bq when…

A: Given data: Decay rate, dNdt=5.30×1011Bq Nuclei, N = 2.50 ×1015

Q: The half life of an unknown substance is 1 week. How much of its nuclei were disintegrated after 10…

Q: Radon-222 decays at a continuous rate of 17.3% per day. Suppose a scientist begins with a sample of…

Q: A 30 g radioactive isotope has a half-life of 6 years. How much of the isotope will be left after 12…

Q: If a material has a half life of 92.5 days, how long will it take for 75% of the material to decay?…

A: Half life of the material=92.5days 75% of the material decay

Q: Radon gas has a half-life of 3.83 days. If 2.86 g of radon gas is present at time t = 0, what mass…

Q: What fraction of a radioactive sample is left after exactly 6 half lives? Give your answer to 3…

A: Number of half life (n) = 6

Q: the half life of a radon is 3.8 days. calculate the number of disintegrations per second of 2.5g of…

A: The half-life of radon is, t12=3.8 days=3.8×24×3600 s=328320 s The decay constant of the radon can…

Q: The half-life of americium-241 is 457 years. What is the activity in curies of a 0.010g of sample of…

A: Half life of americium 241 t1/2 = 457 years Mass of sample m = 0.010 g Molar mass of americium -241…

Q: A radioactive sample has a mass of 999 grams. How much remains after 2 half-lives?

A: If the amount of a radioactive sample is N0 initially, then after 1st half live of the sample, it…

Q: 1. A radioactive substance has a half-life period of 60 days What is the disintegration constant?…

Q: Manganese-52 has a half-life of 6 days. How many days would a scientist have to wait for the…

A: The radioactivity decay of a sample has a relationship given by:Nt=N0e-λt………(1)where,N0 is the total…

Q: What mass of a 2,400g sample of an isotope will remain after 32.8 days if the half life of the…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: [08] A building is contaminated with radon (" Rn ,m=222.017 570u ), a radioactive gas with a half-…

A: Radioactivity is the process of decay of heavy nucleus by the emission of energy from unstable atoms…

Q: The radioactive cobalt isotope, 60Co, has an half-life of 63 months and undergoes decay. The molar…

A: Given: sample = C60o half life t1/2 = 63 months molar mass M = 59.9338222 amu initially No = 48 mg…

Q: Certain radioactive substances has a half-life of 20 min. If there is 56 lbs of it right now, how…

Q: Binding energy per nucleon for an element is 7.14 MeV. If the binding energy of the element is 28.6…

Q: The half-life of radium 224 is about 3.6 days. What approximate fraction of a sample remains…

A: Half Life of Radium 224, t1/2 = 3.6 days Time interval, t = 2 weeks = 14 days

Q: Suppose you have a 1 g sample of 226Ra, half-life 1600 years. How long will it be until only 0.1 g…

Q: When radium 226 decays emitting an alpha particle, what is the atomic number and atomic mass of the…

A: The alpha particle having mass number 4 and atomic number 2 and it is a helium nucleus.

Q: What is the long-range fate of all the uranium that exists in the world?

A: Uranium-238 is a radioactive element which decays in series of 4 steps.

Q: Find the missing value for the radioactive isotope. (Round your answer to two decimal places.)…

A: we know that decay constant λ =ln2half lifeand m=m0e-λt

Q: The half-life of radium is approximately 1600 years. If the present amount of radium in a certain…

Q: The barium isotope 133Ba has a half-life of 10.5 years. A sample begins with 1.0 × 1010 133Ba atoms.…

Q: Cadmium-107 has a half life of 6.52 hours. If you start off with sample which has an activity of 1.0…

A: The reactivity of the sample after time t is given by:

Q: The half-life of radon-222 is 2.8 days. How many days would it take for the activity due to radon in…

A: Given that:- Half life of radon-222=2.8 days

Q: what is the specific difference between radioactivity and radioactive decay?

Q: Radon gas has a half-life of 3.83 days. If 3.28 g of radon gas is present at time t = 0, what mass…

A: Write the formula for the decay constant. Write the formula for the mass of the radioactivity of…

Q: If a 1.50-cm-thick piece of lead can absorb 90.0% of the γ rays from a radioactive source, how many…

Q: Given that radioactive cobalt-60 has a radioactive constant equal to 3.8 x 10° s determine its…

A: Given information: Here, λ is the radioactive constant or decay constant.

Q: Americium-243 has a decay constant of 9.39* 10-5 years-1. How long will it take for a sample of…

Q: You are experimenting with a radioactive sample of polonium. At the end of 14.0 minutes, exactly…

Q: A certain radioisotope has a half-life of 8.96 days. What percentage of an initial sample of this…

Q: How many radioactive nuclides are in a sample with a radioactivity of 3.1 kCi? The half-life of the…

Q: The half-life of a radioactive nuclide is 20 years. If a sample of this nuclide has an activity of…

A: Formula of radioactivity is as follows: I=I0e-λt…

Q: Technetium-99m is a radioactive isotope with a half-life of 6 hours. If a sample of was originally…

Q: A radioactive isotope has a half-life of 10 minutes. At the start of an experiment, the activity of…

Q: 15. A nuclide (Z,A may transform into a nuclide (Z-1,A) by the emission of a. an alpha b. aB- a B+…

A: GivenA nuclide (Z,A) ma transform into a nuclide (Z-1,A)

Q: The half life of radium is 1.62x10^3years. What fraction of radium would remain after 1.0x10^3years?…

Q: A sample of 1.0 × 1010 atoms that decay by alpha emission has a half-life of 100 min. How many alpha…

A: According to the law of radioactive disintegration, Nt=N012tt12 Find the number of emitted alpha…

Q: Radioactivity depends on the nucleus and not the atom or its chemical state. Why, then, is one…

Q: A dose of 8.60 mCi of a radioactive isotope is injected into a patient. The isotope has a half-life…

Q: Technetium-99 (half-life = 6.0 h) is used in medical imaging. How many half-lives would go by in 22…

A: total life, T = 22 h half life = 6 h

Q: Radioactive nuclide, 9ºSr, has a half-life of 30 years. What percent of a sample of 9ºSr will remain…

Q: Radon gas has a half-life of 3.83 days. If 2.70 g of radon gas is present at time t = 0, what mass…

A: Given: Half life, t1/2 = 3.83 days At t=0 mass of radon ,Co = 2.70 g To determine mass of radon…

Concept explainers

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.

Question

Suppose that 3x10⁷ radon atoms are trapped in a basement at the time the basement is sealed against further entry of the gas. The half-life of radon is 3.83 days. How many radon atoms remain after 31 days?

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

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, physics and related others by exploring similar questions and additional content below.

Similar questions

What fraction of a radioactive sample has decayed after two half-lives have elapsed?
Suppose you have a pure radioactive material with a half-life of T1/2. You begin with N0 undecayed nuclei of the material at t = 0. At t=12T1/2, how many of the nuclei have decayed? (a) 14N0 (b) 12N0(C) 34N0 (d) 0.707N0 (e) 0.293N0
If a 1.50cmthick piece of lead can absorb 90.0% of the rays from a radioactive source, how many centimeters of lead are needed to absorb all but 0.100% of the rays?
A radioactive sample initially contains 2.40102 mol of a radioactive material whose half-life is 6.00 h. How many moles of the radioactive material remain after 6.00 h? After 12.0 h? After 36.0 h?