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Question
If an isotope has a half-life of 4 billion years, then in 4 billion years what will happen?a. All of the original amount will have decayed.
b. A quarter of the original amount will still remain.
c. Half of the original amount will still be present.
d. All of the original amount will still be present.
e. The original amount will have doubled.
Answer
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Related questions
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