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28 September, 03:48

The half-life of a radioactive isotope is the amount of time it takes for a quantity of radioactive material to decay to one-half of its original amount.

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  1. 28 September, 04:01
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    Answer: The statement is true

    Explanation:

    The half-life of a radioactive isotope is the time taken for half of the total number of atoms in a given sample of the isotope to decay.

    For instance

    The half-life of radium is 1622 years. This means that if we have 1000 radium atoms at the beginning, then at the end of 1622 years, 500 atoms would have disintegrated, leaving 500 undecayed radium atoms

    Thus, the statement is true
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