Multiple Choice
Which properties does uranium-238 have? Select the TWO answers that are correct.
A) Its half-life is 4.5 billion years.
B) Its half-life is 2.0 billion years.
C) It can date organic samples that are thousands of years old.
D) It is a radioactive isotope that decays to nonradioactive argon-40.
E) It is a radioactive isotope that decays in a predictable fashion.
Correct Answer:

Verified
Correct Answer:
Verified
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