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Binding Energy

Calculate the...

Question

Calculate the mass of an $α$ - particle. Its binding energy is 28.2 MeV.

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Solution

Let the mass of ' $α$ ' particle be $x u$ $α$ particle contains 2 protons and 2 neutrons

$∴$ Binding Energy

=( $2 \times 1.007825 \times 1.00866 u - x u$ ) $c^{2}$ = 28.2 MeV(given) x = 4.0016 u

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