Suppose you found a rock, and through testing, found out that, it was roughly 13.5 billion years old. What percentage of Uraniam-238 remains in the rock?
Added by Timothy R.
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Uranium-238 has a half-life of approximately 4.5 billion years. This means that every 4.5 billion years, half of the Uranium-238 in a sample will decay into another element. Show more…
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