A fusion reaction consists of combining four protons into an `alpha`-particle the mass of `alpha`- particle is 4.00260u and that of proton is 1.007825u

Options

A. the equation `4p_(1)^(1)toHe_(2)^(4)` does not satisfy conservation of charge
B. the correct reaction equation may be `4p_(1)^(1)toHe_(2)^(4)+2beta^(+)+2upsilon` where `beta^(+)` is positron and `upsilon` is the neutrino (zero rest mass and uncharged)
C. loss of mass in the reaction is 0.028697 u
D. the energy equivalent of the mass defect is 26.7 MeV

Answer

A, B, C, D

Explanation

Mass defect `Deltam=4m_(H)-m_(He)`
`=4(1.007825)-4.002603=0.028697u`
`=0.02897uxx932=26.7 MeV`