Dating the Earth
Review for your Dating the Earth quiz
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Topics of this game:
- The time it takes for 50% of the nuclei in a radioactive sample to decay to its stable isotope is called ____.
- Carbon-14 is an isotope
- Assume you began with 10 g of a radioactive parent isotope. How many grams of parent isotope will be present in the sample after 2 half-lives?
- In general, the law of superposition states that in an undeformed sequence of sedimentary rocks, each layer is ____.
- What is the currently accepted age of Earth?
- The dating process that places geologic events in proper sequence is referred to as a ____.
- Atoms with the same atomic number but different mass numbers are called ____
- An unconformity is a(n) ____.
- How is radioactive decay used to determine the absolute age of rocks?
- The process by which atomic nuclei spontaneously decay is called ____.
- Younger layers of undisturbed sedimentary rock are above older layers according to
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