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Atoms and Nucle...

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  • Question 1
    4 / -1

    Consider two nuclei of the same radioactive nuclide. One of the nuclei was created in a supernova explosion 5 billion years ago. The probability of decay during the next time is

  • Question 2
    4 / -1

  • Question 3
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    If half-life of radium is 77 days, its decay constant will be

  • Question 4
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    In a radioactive reaction
    92 X232 → 82 X204
    the number of α - particles emitted is

  • Question 5
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    If in a nuclear fission, piece of uranium of mass 5.0 g is lost, the energy obtained in kWh is

  • Question 6
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    Which of the following fusion reactions will not result in the net release of energy
    I. 6Li + 6Li
    II. 4He + 4He
    III. 12C + 12C
    IV. 35CI + 35CI

  • Question 7
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    A radioactive substance has an average life of 5 h. In a time of 5 h

  • Question 8
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  • Question 9
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    X + 14N7 → 17O8 + 1P1. What is the X?

  • Question 10
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    A nucleus of mass M + ∆m is at rest and decays into two daughter nuclei of equal mass (M/2) each. Speed of light is c.
    The speed of daughter nuclei is

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