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27 July, 19:35

Calculate the mass defect of the nitrogen nucleus 14 7n. the mass mn of neutral 14 7n is equal to 14.003074 atomic mass units.

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  1. 27 July, 20:18
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    Proton mass = 1.00728 amu

    neutron mass = 1.0086 amu

    electron mass = 0.000549 amu

    so the mass is:

    (7 * 1.00728) - (7 * 1.0086) - (7 * 0.000549) - 14.003074

    = 0.11235 amu
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