1) The radioactive isotope 57Co has a half-life of 272 days. (a) Find its decay constant....

1) The radioactive isotope 57Co has a half-life of 272 days.
(a) Find its decay constant.
(b) If your source has an activity of 2.00 mCi, how many radioactive nuclei does it contain?
(c) What is the activity of your source after one year?

Expert Solution

having any problem please comment.

Regards.

genius_generous answered 3 weeks ago

a) Radon undergoes alpha decay with a half-life of 3.8 days. What is its decay constant...

a) Radon undergoes alpha decay with a half-life of 3.8 days. What is its decay constant in s-1? b) Sr -90 (A=90, Z = 38) decays via β- decay. Calculate the energy of the antineutrino (in keV) if the beta particle has a kinetic energy of 397 keV. Note - you can look the atomic masses up online. c) What is the average binding energy per nucleon for Argon-40 (A=40, Z = 18) in MeV/nucleon? Note - keep 4 significant...

32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 30.9...

32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 30.9 g of 32P, how much 32P was present 9.00 days ago?

Radioactive Decay Objective: to study the radioactive decay of materials. Understand the concept of half life and...

Radioactive Decay Objective: to study the radioactive decay of materials. Understand the concept of half life and randomness of the radioactive decay Run the case of H3 decay to He3: Go to “Multiple Atoms” tab Start with 80 atoms by clicking on the bucket. Start running and record the time when the number of H3 is changing to 40, 20, 10, and 5.This is accumulative time Repeat the above step 5 times and average them (below is an example of table...

If there is 10umol of the radioactive isotope 32P (half-life 14 days) at t=0, how much...

If there is 10umol of the radioactive isotope 32P (half-life 14 days) at t=0, how much 32P will remain at (a). 7 days (b) 14 days (c) 21 days and (d) 70 days? I already know the answers, I have the student companion guide to my biochemistry textbook. It does not tell me how to work out the problem though. If anyone could help it would be appreciated! The answers are (a) 7mmol (b) 5umol (c) 3.5mmol and (d) 0.3umol

The half-life of a radioactive isotope represents the average time it would take half of a...

The half-life of a radioactive isotope represents the average time it would take half of a collection of this type of nucleus to decay. For example, you start with a sample of 1000 Oxygen-15 (15O) nuclei, which has a half-life of 122 seconds. After 122 seconds, half of the 15O nuclei will have decayed into Nitrogen-15 (15N) nuclei. After another 122s, half of the remaining Oxygen nuclei will have also decayed, and so on. Suppose you start with 3.71×10315O nuclei...

Radioactive Isotope #1: Uranium-238 How long is its half-life? How long will it take the...

Radioactive Isotope #1: Uranium-238 How long is its half-life? How long will it take the original radioactive product to reduce by 50%? How long will it take the original radioactive product to reduce by 25%? What material is the best application for this isotope? Describe the disadvantages and advantages of using this element for dating. What is the stable daughter product?

Choose an isotope and describe its radioactive decay process and how it is used

Choose an isotope and describe its radioactive decay process and how it is used. Write a...

Choose an isotope and describe its radioactive decay process and how it is used. Write a minimum of 150 words.

BIOPHYSICS 1. Cobalt-60 (60Co), is a synthetic radioactive isotope of cobalt with a half-life of 5.2713...

BIOPHYSICS 1. Cobalt-60 (60Co), is a synthetic radioactive isotope of cobalt with a half-life of 5.2713 years. It is an isotope that emits gamma rays essential to the medical community for cancer treatments, as well as sterilization of medical devices. Cobalt-60 is used as a radiation source for medical radiotherapy where it is used in cancer treatment to control or kill malignant cells. Cobalt-60 is used as the radiation source in Gamma Knife equipment that enables non-surgical treatment of brain...

The half-life of a certain radioactive isotope is 3.24 years. If a sample consisting of 6.023x1023...

The half-life of a certain radioactive isotope is 3.24 years. If a sample consisting of 6.023x1023 atoms were allowed to decay, what percentage of the original number of atoms have decayed after 2.0 years? A) 50 B) 46 C) 32 D) 54 E) 60

Question