Radiocarbon Dating
Authored by Charles Martinez
Other Sciences
9th - 12th Grade
Used 1+ times
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18 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When an unstable radioactive atom decays, it usually turns into:
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Radiometric dating is possible because the rates of decay of radioactive isotopes _____.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The time it takes for 50% of the nuclei in a radioactive sample to decay to its stable isotope is called _____.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
According to the graph, what fraction of the original parent isotope still exists after 3 half lives?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You find a rock sample with radioactive atoms present. If 12.5% of the original radioactive atoms were present, how many half-lives has the rock been around for? (Hint, at Half-Life = 0, you start with 100%)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
You find a rock sample with radioactive atoms present. If 25% of the original radioactive atoms were present, how many half-lives has the rock been around for? (Hint, at Half-Life = 0, you start with 100%)
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
If the half-life of a radioactive group of atoms is 100 years, then how old is the rock if there have been two half-lives?
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