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16 January, 02:46

The atomic mass of lithium-6 is 6.015123 u. how much energy is required to completely separate the nucleons in a lithium-6 nucleus?

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  1. 16 January, 03:53
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    What is asked is the binding energy. The formula is

    E = c² Δm

    In a lithium-6 atom, there are 3 protons and 3 neutrons.

    The mass of the nucleus is

    3 (1.672622) + 3 (1.674927) = 10.035344

    The binding energy is

    E = (3x108) ² (10.035344 - 6.015123)

    E = 3.618 x 10^17 J
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