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29 February, 08:13

Uranium-238 has a half-life of 4.5 billion years. Given that scientists estimate Earth's age to be 4.6 billion years, what is the most likely percentage of parent to daughter isotopes of this element currently existing on Earth?

10 percent

25 percent

50 percent

75 percent

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Answers (2)
  1. 29 February, 09:53
    0
    The answer will be 10 percent
  2. 29 February, 10:50
    0
    The answer is 10 percent
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