What Is the Half Life of Uranium?

Answer

The half life of uranium 232 is 68.8 years and 99.6 years in lifetime. Uranium 238 has a half-life of 4.46 billion years and uranium 235 has a half-life of 704 billion years. Natural uranium usually consists of three isotopes which include: uranium-238, uranium-235, and uranium-234. All the uranium isotopes are radioactive.
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1 Additional Answer
Half life means the time required for half of the atoms to decay in a radioactive substance. The half life of Uranium is as old as 4.5 billion years.
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