WorksheetsRadioactivity
Total questions: 15
Worksheet time: 26mins
What is the mass number of this isotope?
131
53
184
78
How many neutrons does this isotope have?
131
53
184
78
What will the values of x and y be?
x=194, y =83
x=194, y =84
x=194, y =85
I don't know. I should probably study this stuff more before the test.
A sample of Radium-228 decays from 100g to 12.5g. How many half lives did it experience?
1
2
3
4
If the half life of Uranium-240 was 10 years, how long would it take for it to decay from 310g to 80g?
10 years
240 years
20 years
30 years
This image shows
nuclear fission
nuclear fusion
This equation shows
Nuclear fission
Nuclear fusion
How do the nuclear reactions that power the Sun compare to the nuclear reactions that occur in a reactor at a nuclear power facility?
Power plants release radiation and the sun does not
Nuclear reactions on the sun are less powerful than nuclear reactions in power plants
The Sun is powered via nuclear fusion while a nuclear power facility harnesses energy from nuclear fission
Fission occurs on the sun while fusion occurs in a nuclear power facility
The graph shows the radioactive decay of a 50-gram sample of a radioactive isotope.
According to the graph, what is the half-life of this isotope?
The graph shows the decay of a radioactive material over time.
How long does it take for this radioactive material to decay through 2 half-lives?
The graph shows the generalized rate of decay of radioactive isotopes over 5 half-lives.
If the original mass of a radioactive isotope was 24 grams, how many grams would remain after 3 half-lives?
A radioactive isotope is any atom that contains an unstable _____.
energy level
nucleus
orbital
electron
_____ is when the composition of a radioactive isotope changes.
ionization
isomer
nuclear decay
Geiger counters
