Two radioactive nuclides, A and B, are presented at t = 0 with the number of nuclei of A equal twice the number of nuclei of B. The lifetime of the two nuclides are 7 for A, and 3pi for B. Calculate the time (in units of t) at which the number of nuclei of A and B are equal.

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
icon
Related questions
Question

2) Two radioactive nuclides, A and B, are presented at t = 0 with the number of nuclei of A equal twice the number of nuclei of B. The lifetime of the two nuclides are 7 for A, and 3pi for B. Calculate the time (in units of t) at which the number of nuclei of A and B are equal.

1)
1. What is the half-life of this
radioactive sample?
Aptray tw
2. What is the decay constant of this
isotope?
3. How many atoms were initially
present in this sample?
4. What will be the activity of this
sample after 10.0 minutes?
5. How long will it take for the activity of this sample to drop to 1.0 % of its initial value?
2)
A equal twice the number of nuclei of B. The lifetime of the two nuclides are t for A, and 3T
for B. Calculate the time (in units of T) at which the number of nuclei of A and B are equal.
Two radioactive nuclides, A and B, are presented at t=0 with the number of nuclei of
3)
according to your study to the shell model, answer the following
1- Explain why the 3D-harmonic oscillator potential does not give the correct magic numbers?
2- Discuss how spin-orbit coupling helps to find the correct magic number?
3- Write the ground state configuration of protons and neutrons for "F, S and 55Mn?
4- Find the total spin and the parity for "F, "S and Mn
23U/-3*U = 0.07. Assuming that these two isotopes existed in equal amounts at the time the
earth was formed; calculate the age of the earth. [note : life times: 25U 6.52 x 10 years,
235U
4)
)Natural Uranium, as found on earth, consists of two isotopes in the ratio of
1.02 x 10' years]
Transcribed Image Text:1) 1. What is the half-life of this radioactive sample? Aptray tw 2. What is the decay constant of this isotope? 3. How many atoms were initially present in this sample? 4. What will be the activity of this sample after 10.0 minutes? 5. How long will it take for the activity of this sample to drop to 1.0 % of its initial value? 2) A equal twice the number of nuclei of B. The lifetime of the two nuclides are t for A, and 3T for B. Calculate the time (in units of T) at which the number of nuclei of A and B are equal. Two radioactive nuclides, A and B, are presented at t=0 with the number of nuclei of 3) according to your study to the shell model, answer the following 1- Explain why the 3D-harmonic oscillator potential does not give the correct magic numbers? 2- Discuss how spin-orbit coupling helps to find the correct magic number? 3- Write the ground state configuration of protons and neutrons for "F, S and 55Mn? 4- Find the total spin and the parity for "F, "S and Mn 23U/-3*U = 0.07. Assuming that these two isotopes existed in equal amounts at the time the earth was formed; calculate the age of the earth. [note : life times: 25U 6.52 x 10 years, 235U 4) )Natural Uranium, as found on earth, consists of two isotopes in the ratio of 1.02 x 10' years]
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Relativistic speed and time
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
Recommended textbooks for you
College Physics
College Physics
Physics
ISBN:
9781305952300
Author:
Raymond A. Serway, Chris Vuille
Publisher:
Cengage Learning
University Physics (14th Edition)
University Physics (14th Edition)
Physics
ISBN:
9780133969290
Author:
Hugh D. Young, Roger A. Freedman
Publisher:
PEARSON
Introduction To Quantum Mechanics
Introduction To Quantum Mechanics
Physics
ISBN:
9781107189638
Author:
Griffiths, David J., Schroeter, Darrell F.
Publisher:
Cambridge University Press
Physics for Scientists and Engineers
Physics for Scientists and Engineers
Physics
ISBN:
9781337553278
Author:
Raymond A. Serway, John W. Jewett
Publisher:
Cengage Learning
Lecture- Tutorials for Introductory Astronomy
Lecture- Tutorials for Introductory Astronomy
Physics
ISBN:
9780321820464
Author:
Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden
Publisher:
Addison-Wesley
College Physics: A Strategic Approach (4th Editio…
College Physics: A Strategic Approach (4th Editio…
Physics
ISBN:
9780134609034
Author:
Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field
Publisher:
PEARSON