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Physics, 16.05.2020 03:57 danielanderson12

200mg of uranium-238 has a half life of 4.5 billion years

How much will be left after 13.5 billion years

A: 200mg
B: 100mg
C: 50mg
D:25mg

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200mg of uranium-238 has a half life of 4.5 billion years

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