Calculate the binding Energy of an alpha `(alpha)` particle in Mev from the following data.
Mass of Hlium Nucleus = 4.00260u
Mass of neutron= 1.008662u
Mass of proton = 1.007825u

Explanation

Alpha particle: `""_(2)^(4)He` Z=2 and A=4
Mass defect: `Delta m= [Zm_(P) + (A -Z)m_(n)]-M`
`Delta m= 2 xx 1.007825 + 2 xx 1.008662- 4.00260`
`Delta m= 2.01565 + 2.017324-4.00260`
`Delta m= 0.030374u`
Binding energy : `E_(b)= Delta m xx 931 MeV= 0.030374 xx 931` MeV
`E_(b)= 28.2782` MeV