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How much rubidium-87 would remain in an object that is 147 billion years old?
Wiki User
∙ 11y ago
Rubidium 87 has a half life of 49 billion years so it would be 3 half lives. There should, therefore be 1/8 remaining.
However, it is believed that the universe is less than 15 billion years old. So finding any object that is 147 billion years old is - to put it mildly - totally impossible!
Wiki User
∙ 11y ago
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