Multiple Choice
What characteristic is important in using radioisotope dating for very old items, such as rocks suspected to be over 100,000,000 years old?
A) The radioisotope cannot be soluble in water.
B) The radioisotope must give off light for easy measurement.
C) The radioisotope in question must decay to another radioisotope.
D) The radioisotope should have a very long half-life.
Correct Answer:

Verified
Correct Answer:
Verified
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