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JCECE Medical JCECE Medical Solved Paper-2014

  • question_answer
    Li nucleus has three protons and four neutrons. Mass of lithium nucleus is 7.016005 amu. Mass of proton is 1.007277 amu and mass of neutron is 1.008665 amu. Mass defect for lithium nucleus in amu is

    A)  0.04048

    B)  0.04050

    C)  0.04052

    D)  0.04055

    Correct Answer: B

    Solution :

     Mass defect = mass of nucleons ~ mass of nucleus \[=(3\times 1.007277+4\times 1.008665)-7.016005\] \[=0.040486\,\text{amu}\] \[\approx 0.04050\,\text{amu}\]


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