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Find the binding energy of an alpha-part...

Find the binding energy of an `alpha`-particle from the following data.
Mass of helium nulceus `=4.001235 am u`
Mass of proton `=1.007277 am u`
Mass of neutron `=1.00866 am u`
(take 1 amu=`931.4813 MeV)`.

Text Solution

Verified by Experts

`alpha`-particle consists of `2` protons and `2` neutrons
Mass defect: `Deltam = (Zm_(p)+Nm_(n) -m(._(2)^(4)He)`
`=2xx1.007277+2xx1.008666-4.001265`
`= 0.3062 u`
`B.E. = 0.03062 xx 931.48`
`= 28.52 MeV`
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