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    Calculation of Radioactive Disintegration Constant

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    A radio active substance has a half life of 30 days. Calculate
    (a) the radioactive disintegration constant (b) The average life
    (c) the time taken for ¾ of the original number of atoms to disintegrate and
    (d) the time taken for 1/8 of the original number of atoms to remain unchanged

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    Solution Preview

    Please see the attached document also.

    We have, T= 30 days
    (a) The radioactive disintegration constant λ = 0.693/T = 0.0231 per day (Ans)

    (b) Average life Ta = 1/λ ...

    Solution Summary

    Solution with detailed explanations as a word attachment. The calculations of radioactive disintegration constants are given.