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?

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anonymous · Answer

Your first 4 Q's are missing !
In all these, pl make a log- graph to know /get convinced about the "exponential" decay of nuclear isotopes ! This can help you how & why these are 'never ending ' reactions lasting so long !