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Nuclear Chemist...

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  • Question 1
    4 / -1

    What is the correct order of velocity of alpha (α ), beta (β) and gamma (γ) rays ?

  • Question 2
    4 / -1

    Loss of a beta particle is equivalent to

  • Question 3
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    β-particle is emitted in a radioactive reaction when

  • Question 4
    4 / -1

    Penetrating power of waves are

  • Question 5
    4 / -1

    The half-life of 14C is 5570 yr. How many years will it take for 90% of a sample to decompose?

  • Question 6
    4 / -1

    A radioactive isotope has a-life of 10 yr. What percentage of the original amount of it ramain after 20 yr?

  • Question 7
    4 / -1

  • Question 8
    4 / -1

    If 8.0 g of a radioactive isotope has a half-life of 10 h. The half-life of 2.0 g of the same substance is

  • Question 9
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    For a radioactive decay the value of K = 2.7 × 10-3 s-1 and initial concentration is 160 mol/L. After 100 s the concentration of radioactive element is

  • Question 10
    4 / -1

    Half-life period of a radioactive element is 100 yr. How long will it take for its 93.75% decay ?

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