Question

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

The radioactive isotope Gold-198 has a half-life of 64.80 hrs. A sample containing this isotope has an initial activity of 40.0 μCi. Calculate the number of nuclei that will decay in the time interval from 10 hrs to 12 hrs.[10 marks]
Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
The radioactive isotope 234Pa has a half-life of 6.70 h. A sample containing this isotope has...
The radioactive isotope 234Pa has a half-life of 6.70 h. A sample containing this isotope has an initial activity (t = 0) of 35.0µCi. Calculate the number of nuclei that decay in the time interval between t1 = 7.0 h and t2 = 14.0 h. ___________ Nuclei
The radioactive isotope 198Au has a half-life of 64.8 hr. A sample containing this isotope has...
The radioactive isotope 198Au has a half-life of 64.8 hr. A sample containing this isotope has an initial activity (t = 0) of 1.5x 10^12 Bq. Calculate the number of nuclei that decay in the time interval between t1 = 10 hr and t2 = 12 hr. Please show and explain work, and do not use calculus to solve it.
The radioactive isotope 198Au has a half-life of 64.8 hours. A sample containing this isotope has...
The radioactive isotope 198Au has a half-life of 64.8 hours. A sample containing this isotope has an initial activity at (t=0) of 1.50e-12 Bq. Calculate the number of nuclei that will decay in the time interval between t1=10 hours and t2=20 hours Answer is 4.60e16 but I'm not sure how. Thanks and please show work
The radioactive isotope (95 Nb) has a half-life of 35 days. A sample containing this isotope...
The radioactive isotope (95 Nb) has a half-life of 35 days. A sample containing this isotope has an initial activity at (t = 0) of 4.50 x 10 ^8 Bq. Calculate the number of nuclei that will decay in the time interval between t1 = 30.0 hours and t2= 55.0 hours. Ans in nuclei and need it asap
The radioactive isotope (82 Sr) has a half-life of 25.4 days. A sample containing this isotope...
The radioactive isotope (82 Sr) has a half-life of 25.4 days. A sample containing this isotope has an initial activity at (t = 0) of 4.5 x 10^8 Bq. Calculate the number of nuclei that will decay in the time interval between t1 = 34.0 hours and t2 = 50.0 hours.
A radioactive isotope has a half-life of 72.0 min. A sample is prepared that has an...
A radioactive isotope has a half-life of 72.0 min. A sample is prepared that has an initial activity of 1.40×1011 Bq. Q1: How many radioactive nuclei are initially present in the sample? Q2: How many are present after 72.0 min? Q3: What is the activity after 72.0 min? Q4: How many are present after 144 min? Q5: What is the activity after 144 min?
The radioactive isotope thorium 234 has a half-life of approximately 578 hours. If a sample has...
The radioactive isotope thorium 234 has a half-life of approximately 578 hours. If a sample has an initial mass of 64 mg, a function that models the mass in mg after t hours is a(t) =   The initial mass will decay to 12 mg after ______ hours Radioactive decay equation: a(t) = a0⋅2 ^ (−t / h) a0 = starting amount a(t) = amount after t hours h = half life in hours
Radioactive decay can be used to determine the age of an object. If you know the...
Radioactive decay can be used to determine the age of an object. If you know the number of radioactive nuclei with which an object started, the number of radioactive nuclei currently present, and the half-life of the isotope, you can calculate the time since the object was created. Suppose an object was created with 3.270×109 nuclei of a particular isotope that has a half-life of 1.66×103 yr. At this point in time 1.079×109 nuclei of this particular isotope remain. What...
The activity of a sample containing radioactive Ag-108 is 6.4×10^4 Bq. Exactly 12 min later, the...
The activity of a sample containing radioactive Ag-108 is 6.4×10^4 Bq. Exactly 12 min later, the activity is 2.0×10^3 Bq. Calculate the half-life of Ag-108. Calculate the initial number of Ag-108 nuclei in the sample.
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 4.00×103 15O...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT