Question

calculate the binding energy for 2h1 atom the mass of 2h1 is 2.01402 amu where 1n and 1p have masses 2.016490 amu.Neglact the mass of electron

Answer 1

Hope this will help you. Friend.

Answer 2

We know,
Binding energy = ∆m. C²
where ∆m = [Zmp +( A - Z)Mn - m ]
where mp is mass of proton
Mn is mass of neutrons
and m is mass of nucleus
A is atomic mass

now for Hydrogen ,
∆m = {1 × mp + (2 - 1)Mn - m}
∆m = { (mp + Mn )- m}

but according to q,
(mp + Mn) = 2.016490
m= 2.01402
hence,
∆m = 2.016490 -2.01402
= 0.00247 amu

we know , 1 amu = 931.5 Mev
so, 0.00247 amu = 0.00247 × 931.5 Mev
= 2.300805 Mev