Answered: iodine 131 has a half life of 8.04 days…

iodine 131 has a half life of 8.04 days if you start with a radioactivr I 131 sample having an activity equal to 40 microci after how long is the activity going to be 4cmicroci

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 34P

See similar textbooks

Related questions

Q: Cesium-137 is radioactive and has a half life of 30. years. Calculate the activity of a 1.4 mg…

A: Given value--- half life time = 30 year . mass = 1.4 mg. We have to find--- Calculate the…

Q: AOK decays to 40Ar with a half-life of 1.25 x 10° yr. Assume that rocks contain no 40Ar when they…

A: Given : half life of decay, t1/2 = 1.25 × 109 years K40A40r=13

Q: A radioactive sample with a half life of 4.8 weeks has 3.05e+15 nuclides present in the initial…

Q: The decay chain of uranium includes radon, a noble gas. When uranium in the soil decays to radon, it…

A: The activity is 0.22 Bq = 0.22 decays/sec. The energy generated by each alpha decay is E = 5.5 MeV.…

Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to…

Q: a sample with a half-life of 19 days has an initial activity of 7.0 x 10^5 counts/s. what isits…

Q: (a) Calculate the decay constant for cobalt-60 (T1/2 = 5.26 Years) in units of week-¹ (b) Calculate…

A: Given, Half-life of cobalt , T1/2 = 5.26 Years = 274.27 week Decay cosntant = 0.693 T1/2

Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to…

A: Given, The half-life, t1/2=1.405×1010 year The mass of the thorium, m=230×10-3 g The molecular mass,…

Q: A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 1.00-kg…

A: Solution: Given that mass m = 1 kg Living material has an activity equal to 15.0 decays/min per…

Q: Plutonium has a decay constant of 2.75 × 10-16 s-1. Activity of 1 g of sample will be 0.678x106 Bq.…

Q: The activity of a sample of a radioisotope at some time is 10.5 mCi and 0.46 h later it is 7.00 mCi.…

A: Initial activity of isotope is Ro = 10.5 mCi Activity after some time is R = 7.00 mCi Time elapsed…

Q: A drug tagged with Tc (half-life= 6.05 h) is prepared for a patient. If the original activity of the…

A: Given:-Original activity (Ao)=1.1*104 Bq.Time (t) = 1.8 hoursHalf life = 6.05 hFind Activity…

Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to…

Q: Plutonium has a decay constant of 2.75 x 10-16 s-1. Suppose we had a 1.00 g sample what will be its…

A: Radioactive decay is the process by which unstable nuclei spontaneously lose energy to become…

Q: A nuclei has a half-life of 2.80 days. If 122 mCi were prepared but had a delay of 8.0 days. How…

Q: e half-life of 131I is 8.04 days. (a) Convert the half-life to seconds. s (b) Calculate the decay…

A: "Since you have posted a question with multiple sub-parts, as per strict guidelines to us we will…

Q: Strontium-90 from the testing of nuclear bombs can still be found in the atmosphere. Each decay of…

A: The amount of nuclei initially absorbed is

Q: The half-life of 60?? is 5.27 years. The activity of a 60?? is 3.50 × 109 Bq. What is the mass of…

Q: A certain isotope has a half-life of 5.9 h and an atomic mass of 95.98 u. What will the activity in…

Q: A single atom of cesium-133 has a mass, in atomic mass units, of 132.90545193 u. Determine a) the…

Q: The half-life of Ra-226 is 1.60 x 10^3 years = 5.05 x 10^10 s Find k What is the activity in…

A: The objective of the question is to find the decay constant (k), the activity in curies of a 1.00 g…

Q: A 5000-Ci 60Co source used for cancer therapy is considered too weak to be useful when its activity…

Q: The decay chain of uranium includes radon, a noble gas. When uranium in the soil decays to radon, it…

A: Step 1: Data provided in the problem Activity of radon in the air inside the lungs A=0.22 Bq=0.22…

Q: In 1992, Swiss police arrested two men who were attempting to smuggle osmium out of Eastern Europe…

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

iodine 131 has a half life of 8.04 days if you start with a radioactivr I 131 sample having an activity equal to 40 microci after how long is the activity going to be 4cmicroci

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

A beam of 168MeV nitrogen nuclei is used for cancer therapy. If this beam is directed onto a 0.200kg tumor and gives it a 2.00Sv dose, how many nitrogen nuclei were stopped? (Use an RBE of 20 for heavy ions.)
Data from the appendices and the periodic table may be needed for these problems. A 60Co source is labeled 4.00 mCi, but its present activity is found to be 1.85107Bq. (a) What is the present activity in mCi? (b) How long ago did it actually have a 4.00—mCi activity?
Data from the appendices and the periodic table may be needed for these problems. Show that the activity of the 14C in 1.00 g of 12C found in living tissue is 0.250 Bq.
Data from the appendices and the periodic table may be needed for these problems. (a) Calculate the activity R in curies at 1.00 g of 226Ra. (b) Discuss why your answer is not exactly 1.00 Ci, given that the curie was originally supposed to be exactly the activity of a gram of radium.
(a) A cancer patient is exposed to rays from a 5000Ci 60Co transillumination unit for 32.0 s. The rays are collimated in such a manner that only 1.00% of them strike the patient. Of those, 20.0% are absorbed in a tumor having a mass of 1.50 kg. What is the dose in rem to the tumor, it the average energy per decay is 1.25 MeV? None of the s from the decay reach the patient. (b) Is the dose consistent with stated therapeutic doses?
What is the dose in mSv for: (a) a 0.1 Gy xray? (b) 2.5 mGy of neutron exposure to the eye? (c) 1.5 mGy of exposure?
In a 3109 yearold rock that originally contained some 238U, which has a halflife of 4.5109 years, we expect to find some 238U remaining in it. Why are 226Ra, 222Rn, and 210Po also found in such a rock, even though they have much shorter halflives (1600 years, 3.8 days, and 133 days, respectively)?
Which of the following is the correct daughter nucleus associated with the beta decay of 72184Hf? (a) 72183Hf (b) 73183Ta (c) 73184Ta
(a) Calculate the energy released in the neutroninduced fission (similar to the spontaneous fission in Example 32.3) n+238U96Sr+140Xe+3n, given m(96Sr)=95.921750u and m(140Xe)=139.92164. (b) This result is about 6 MeV greater than the result for spontaneous fission. Why? (c) Con?rm that the total number at nucleons and total charge are conserved in this reaction.
What time interval elapses while 90.0% of the radioactivity of a sample of 3372As disappears as measured by its activity? The half-life of 3372As is 26 h.
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?
In the following eight problems, write the complete decay equation for the given nuclide in the complete XZAN notation. Refer to the periodic table for values of Z. decay of 226Ra, another isotope in the decay series of 238U, FIrst recognized as a new element by the Curies. Poses special problems because its daughter is a radioactive noble gas. In the following four problems, identity the parent nuclide and write the complete decay equation in the XZAN notation. Refer to the periodic table for values of Z.