Answered: The half-life of a certain radioactive…

The half-life of a certain radioactive element is such that 7/8 of a given quantity decays in 12 days. What fraction remains undecayed after 24 days? A. 0 B. 1/32 C. 1/64 D. 1/128

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter10: Nuclear Physics

Section: Chapter Questions

Problem 10.3CYU: Check Your Understanding A radioactive nuclide has a high decay rate. What does this mean for its...

See similar textbooks

Related questions

Q: Q3) The activity of 1 gram of radium (226Ra) is exactly 1 Ci. The half-life of radium (in years) is-…

A: We have m=1 gm of Radium (R88226a) whose activity is given to be A=1 Ci. We need to find the half…

Q: All the very heavy atoms found in the earth were created long ago by nuclear fusion reactions in a…

Q: In a gamma decay process __________. A) a high-energy alpha particle is produced B) a parent…

A: Given In a gamma decay process __________.

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

Q: 2. The half-life of a radioactive sample is 30 minutes. If the sample originally contains…

A: Half-life of a radioactive substance is the time that is taken by the substance to reduce into half…

Q: 2. An isotope of sodium 24N a has a half-life of 15 hours. A sample of this isotope has a mass of…

Q: A sample of radioactive material contains 1x 1014 atoms and has an activity of 6.3 x 1011 Bq. What…

Q: Q2: - Radioactive carbon 14 sample contain 2x10"nuclie initially and its half-life is 5730 years,…

Q: Q2:-Two samples of the same radioactive nuclide are prepared, each having the same size. Sample A…

A: SOlution: Given that the raltion between half lide and sample decay is T1/2 = ln2/λ the relation…

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

Q: 227 Write a complete nuclear equation for the transmutation of a uranium isotope, U, into a 92…

Q: 9. If Th-234 emits a beta particle, what nucleus is formed? 10. If Nitrogen-14 absorbs a neutron…

Q: Question 3 A laboratory investigation shows that a sample of uranium ore contains 5.37 mg of U and…

A: We have to find the age of the ore

Q: 53. A radioactive sample contains 3.50 µg of pure "C, which has a half-life of 20.4 min. (a) How…

A: Given data: Mass, m=3.50μg=3.5×10-6g Half-life, t12=20.4 min=20.4×60 s=1224 s

Q: If a 10-gram sample of a radioactive substance has a half-life of 6000 years, how much would be…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: 5. A radioactive material has a half-life of eight days. How long will it take the material to be…

A: Let initial number of nuclei in the radioactive material be No and it is given that half life of the…

Q: An unknown radioactive element decays into non-radioactive substances. In 920920 days the…

A: (a) Half-life

Q: If the atomic mass of Sodium-18 is 18.02597 u, what is the binding energy?

A: Given: The atomic mass of Sodium-18: M(18Na) = 18.02597 u. (Here, the mass number is A = 18) To…

Q: 234 Pa → 4 He + ______ 91 2 When balancing the nuclear reaction, explain the…

A: P91234a → H24e + ? To find: the daughter nuclide

Q: After long effort, in 1902 Marie and Pierre Curie succeeded in separating from uranium ore the first…

Q: Two radioactive nuclei, A and B have the same amount at the beginning. After 15 days, the number of…

A: The half life of B is longer than A.

Q: 64 g of a radioactive substance is prepared. 105 hours later, only 16 g remains. To the nearest…

A: To the nearest hour, the radioactive half-life of the substance is 52.5hours

Q: 21) The half life for radioactive decay of C14. Is 5730 years. An archaeological artifact containing…

Q: Osed in Radioactive vanadium-48 decays with a half-life of 16.0 days. [Review Topics] [References]…

Q: The radioactive nuclide platinum-199 has a half-life of 30.8 minutes. A sample is prepared that has…

A: Given : Half life of platinum-199, t1/2 = 30.8 minutes Initial activity of the prepared sample, R =…

Q: A certain radioactive material decays exponentially. The percent, P, of the material left after…

A: Given:- A certain radioactive material decays exponentially. The percent, P, of the material left…

Q: 4. Given the half-life T of radium is 1690 years, how much will remain of 10 grams of radium after…

Q: 6. Which of the following statement is NOT true about half-life? a. It is the amount of time in…

Q: the decay of a radioactive material has a count rate is 2000 decays/min. 4 hours later, the decay…

A: Given:- the decay of a radioactive material has a count rate is 2000 decays/min. 4 hours later, the…

Q: The half-life of beryllium-7 is about 53.3 days. (a) Determine the decay constant for beryllium-7.…

A: Given value--- Half life time = 53.3 days. We have to find--- (a) Determine the decay constant…

Q: The remains of an ancient cave were unearthed. Analysis from charcoal in the cave gave 12.0…

A: Half life is defined as the interval of time required to decay half of the nuclei of radioactive…

Q: 6. How long will it take for an amount of Radon-223 to decay to only 60% of the original amount? The…

A: The time required to decay to 60% of original amount needs to be calculated.

Q: Which of the following quantities is conserved during radioactive decay? **** THERE IS ONLY ONE…

A: To discuss the conserved quantity during a radioactive decay

Q: Q2: - Two samples of the same radioactive nuclide are prepared, each having the same size. Sample A…

A: Two samples of same radioactive nuclide are prepared, each having the same size.Sample A has twice…

Q: 15 The nucleus 0 has a half-life of 122.2 s; 0 has a half-life of 26.9 s. Assume, that at some time…

Q: Does the number of radioactive nuclei in a sample decrease to exactly half its original value in one…

A: The number of nuclei at a given instant of time can be given as We know,

Q: 6. The decay constant of radioactive source that have a half-life of 80 sec is equal to ----s-¹ A)…

Q: *•58 Two radioactive materials that alpha decay, 238U and 232Th, and one that beta decays, "K, are…

Q: 3. A beta particle is an electron emitted by the atomic nucleus during radioactive decay. a. True b.…

Q: 9. Construct a mathematical model for a radioactive series of three elements A, B. and C where C is…

A: Given, Radioactive series of three elements A,B & C Decay constant of A =-0.138629 days…

Question

The half-life of a certain radioactive element is such that 7/8 of a given quantity
decays in 12 days. What fraction remains undecayed after 24 days?
A. O
B. 1/32
C. 1/64
D. 1/128

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

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 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 has an activity R. For each of the following changes, indicate whether the activity would increase, decrease. or remain unchanged. Indicate your answers with I, D, or U. (a) The number of radioactive nuclei in the sample is doubled. (b) The half-life of the radioactive nuclei is doubled. (c) The decay constant is doubled. (d) A time period equal to two half-lives is allowed to elapse.
Check Your Understanding Nucleus X is two times larger than nucleus Y. What is the ratio of their atomic masses?
A sample of radioactive material is obtained from a very old rock. A plot InA verses t yieldsa slope value of 109s1 (see Figure 10.10(b)). What is the half-life of this material?
If a 1.50-cm-thick 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?
The mass (M) and the radius (r) of a nucleus can be expressed in terms of the mass number, A. (a) Show that the density of a nucleus is independent of A (b) Calculate the density of a gold (Au) nucleus. Compare your answer to that for iron (Fe).
Check Your Understanding A radioactive nuclide has a high decay rate. What does this mean for its half-life and activity?
Radioactivity depends on the nucleus and not the atom or its chemical state. Why, then, is one kilogram of uranium more radioactive than one kilogram of uranium hexafluoride?
A sample of pure carbon-14 ( T1/2=5730y ) has an activity of 1.0Ci . What is the mass of the sample?