The half-life of radon is 3.8 days. Calculate the number of disintegrations per second of 2.5 g of radon - a) 4.6 × 10^16 disintegrations/s b) 1.43 ×10 ^ 16 disintegrations/s C) 1.1 ×10^16 disintegrations/S D) 7.6 ×10 ^16 disintegrations/s

The half-life of radon is 3.8 days. Calculate the number of disintegrations per second of 2.5 g of radon - a) 4.6 × 10^16 disintegrations/s b) 1.43 ×10 ^ 16 disintegrations/s C) 1.1 ×10^16 disintegrations/S D) 7.6 ×10 ^16 disintegrations/s

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 22P

See similar textbooks

Related questions

Q: The activity of a particular radioactive nuclide falls from 1 × 1011 Bq to 2 × 1010 Bq in 10 hours.…

A: Calculate the decay constant of the radioactive nuclei. A=A0e-λt2×1010 Bq=1×1011 Bq×e-λ×10 he-λ×10…

Q: The half-life of the radioactive nucleus Ra(88, 226) is about 1.6 ×10^3 yr. what is the decay rate…

Q: The activity of a radioactive isotope is 16000 disintegrations/sec. The activity drops to…

Q: A 44.5 g sample of carbon has an activity of 8.55 decays per second. How old is it? Please give your…

A: Given data The mass of the sample of carbon is given as m = 44.5 kg. The number of decays is given…

Q: 14 Calculate the disintegration energy of the reactions (a) 7 + p-2+ + K* and (b) K- +p→A° + 7".

A: Given information: Note: The standard values of the rest mass (in MeV/c2) are used.

Q: The radioactive isotope Gold-198 has a half-life of 64.80 hrs. A sample containing this isotope…

Q: If 100 grams of a radioactive substance is left to decay, how much would be left after 5 half-lives?…

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: The radioactive isotope 234pa has a half-life of 6.70 h. A sample containing this isotope has an…

Q: Identify X in the following nuclear reactions: (a) H + °Be →X+n; (b)12C + 1H X; (c)15N+4H-4He +X.…

A: In nuclear reaction atomic number ( nuclear charge ) and mass number remains conserved.

Q: 11. The half-life of Uranium-237 is 5.83 x 105 seconds. What is the decay constant?

Q: 4. A radioactive sample, with an initial mass of 28 mg, has a half - life of 5 days. What is the…

Q: 1 Nuclear Radius The density of nuclear matter can be estimated by assuming A spherical nucleons of…

A: As radius is given as r=r0A13, where r0 is a constant equal to1.2×10-15 m and A is number pf…

Q: A sample of radioisotope has a decay constant of 9.978×107 s1 and prepared with an initial activity…

A: Given: The decay constant of the radioactive sample is 9.978x10-7 s-1. The initial activity of the…

Q: A particular rock is thought to be 250 million years old. If it contains 4.51 mg of 238U, how much…

A: Radioactivity is a process in which unstable heavy nuclei convert into more stable lighter nuclei…

Q: А) Теmрerature D) Electric & B) Pressure y9 The half life of radium is about 1600 years. If 100…

Q: The half-life of 231Pa is 3.25×104 years. How much of an initial 10.41 μg sample remains after…

Q: The radioactive isotope 31Si has a half-life of 2.62 h. A sample containing this isotope has an…

A: decay constant (d) = 0.693/half life d = 0.693/2.62 hr -1 d = 0.2645 hr-1 d = 0.00007347328 sec-1…

Q: A radioisotope has a half-life of 5.00min and an initial decay rate of 8000 Bq. (1.) What will be…

Q: A sample of radioisotope has a decay constant of 9.976x10s1 and prepared with an initial activity of…

Q: The activity of a particular radioactive nuclide falls from 1 × 1011 Bq to 2 × 1010 Bq in 10 hours.…

Q: Radon-220 has a half-life of 55.6 seconds. What are the odds that any particular Radon-220 atom will…

Q: Given a half-life of a radioactive source is 435 years. Calculate the time taken for its activity to…

A: Half life of a radioactive substance is given. We are Required to calculate the time it takes for…

Q: 11) Titanium-46 is a stable isotope of the metal Titanium. It has an atomic mass of 45.95 and…

A: Atomic mass = no. of proton+ no. of neutron Atomic no. = no. of proton

Q: The half-life of 14C is t1/2 5 5730 years, and 1.00 g of modern wood charcoal has an activity of…

A: Given: The half life is t=55730 yr. The mass is m=1 g. The activity is A=0.255 Bq. Part (a) The…

Q: The half-life of radon is 3.8 days. Calculate the number of disintegrations per second of 2.5 g of…

A: A radioactive substance’s decay constant is related to its half-life as,

Q: The half-life of a radioisotope O indicates how tightly the nucleons are bound together O determines…

A: The half life of radioisotope is defined as the the amount of time taken for 50% of the original…

Q: . The activity of a radioactive sample decreases by 93.75 % in 2.5 years. What is the half-life of…

Q: The half-life of radium-226 is 1.6 x 10 years. How long will it take for 20.0 mg of radium-226 to…

Q: The radioactive isotope 198Au has a half-life of 64.8 h. A sample containing this isotope has an…

A: Given data: The half -life of A198u is T1/2 =64.8 h The initial activity of the sample ,A =40 μCi…

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: m(H)-3.016049 u m (C)- 12.000000 u m( Ne) 19.992439 u mass of He atom is 4.0015 amu Calculate the…

A: Given: Power = 10 MW

Q: 210Pb has a half-life of 22 years. How many grams of 210Pb are present in 7 mCi pure sample of…

A: Let's calculate the number of molecules using the formula N=Rt1/20.693

Q: The radioactive isotope Pt-188 decays into a stable nuclide after a series of 4 separate decays. The…

A: Eu63144 undergoes alpha, alpha, +beta,+beta decay...

Q: The decay rate of a radioactive source decreases by 28% in 80 h. Determine the half-life, decay…

A: According to law of radioactive decay:N=N0e-λtN0=initial massN=mass at time tλ=decay…

Q: A radioisotope has a half-life of 5.0 days. The activity of a radioisotope sample prepared ten days…

Q: The isotope of Curium 242Cm has a half-life of 160 days and emits alpha particles with an energy…

A: Half life , t12 = 160 days E = 6.1 MeV N0 = 1018 atoms t = 80 days To find = Power emitted

Q: The activity of a particular radioactive nuclide falls from 1 x 1011 Bq to 2 x 1010 Bq in 10 hours.…

Q: In the table below, the 2-H is called Deuterium; its Atomic Mass is 2.014102. Which choice below is…

A: Mass of Deuterium is given as = 2.014102 No of protons in hydrogen 1 = 1

Q: The activity of a particular radioactive nuclide falls from 1 × 10! Bq to 2 x 1010 Bq in 10 hours.…

A: Activity of a particular radioactive nuclide falls from, A0 = 1×1011 BqAt =2×1010 Bqat, t = 10 hours

Q: 5.1 The half-life of radioactive nucleus of Ra is about 1.6 x 10³ years. 88 5.1.1 What is the decay…

Q: What is the missing in this nuclear equation? Mg 1224 + n01 - Na 1123 + a. e -10 b. e +10 C. H11 d.…

A: Use the conservation of mass and the conservation of charge to find the unknown element.

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 3.00 g of radon gas is present at time t = 0, what mass…

A: Given Data : The half-life of radon is given as t1/2 = 3.83 days. The mass of radon gas is given as…

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

The half-life of radon is 3.8 days. Calculate the number of disintegrations per second of 2.5 g of radon - a) 4.6 × 10^16 disintegrations/s
b) 1.43 ×10 ^ 16 disintegrations/s
C) 1.1 ×10^16 disintegrations/S
D) 7.6 ×10 ^16 disintegrations/s

Expert Solution

This question has been solved!

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

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

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

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
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?
is the heaviest stable nuclide, and its BEN is low compared with medium-mass nuclides. Calculate BEN for this nucleus and compare it with the approximate value obtained from the graph in Figure 10.7. fission of nuclei with mass numbers greater than that of Fe. are othermic processes.
Derive an approximate relationship between the energy of (decay and halflife using the following data. It may be useful to graph the leg t1/2 against Ea to find some straightline relationship. Table 31.3 Energy and HalfLife for (Decay Nuclide E( (MeV) t1/2 216Ra 9.5 0.18 (s 194Po 7.0 0.7 s 240Cm 6.4 27 d 226Ra 4.91 1600 y 232Th 4.1 1.41010y
Enter the correct nuclide symbol in each open tan rectangle in Figure P43.25, which shows the sequences of decays in the natural radioactive series starting with the long-lived isotope uranium-235 and ending with the stable nucleus lead-207. Figure P43.25