Mass defect:

$\overline{){\mathbf{\u2206}}{\mathbf{m}}{\mathbf{=}}{{\mathbf{m}}}_{{\mathbf{p}}}{\mathbf{+}}{{\mathbf{m}}}_{{\mathbf{e}}}{\mathbf{+}}{{\mathbf{m}}}_{{\mathbf{n}}}{\mathbf{-}}{{\mathbf{m}}}_{\mathbf{a}\mathbf{t}\mathbf{o}\mathbf{m}}}$

Binding energy:

$\overline{){\mathbf{B}}{\mathbf{.}}{\mathbf{E}}{\mathbf{=}}{\mathbf{\u2206}}{\mathbf{m}}{\mathbf{\xb7}}{{\mathbf{c}}}^{{\mathbf{2}}}}$

Mass of proton = 1.007277 amu

Mass of electron = 0.0005486 amu

Mass of neutron = 1.008665 amu

1 amu = 931.5 MeV/c^{2}

**(a)**

Δm = (18 × 1.007277 + 18 × 0.0005486 + 22 × 1.008665) - 39.948 = 0.3834908 amu

(a) Calculate (in MeV) the total binding energy for ^{40}Ar. Express your answer using four significant figures.

(b) Calculate (in MeV) the binding energy per nucleon for ^{40}Ar. Express your answer using three significant figures.

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Nuclear Physics concept. You can view video lessons to learn Nuclear Physics. Or if you need more Nuclear Physics practice, you can also practice Nuclear Physics practice problems.