The Physics
Hypertextbook
Opus in profectus

# Binding Energy

## Problems

### practice

1. Write something.
2. Write something.
3. Write something.
4. Write something.

### numerical

1. The fuel used in most high-yield thermonuclear weapons is solid lithium 6 deuteride. These weapons, commonly known as "hydrogen bombs" or "H-bombs", use the energy released when a nucleus of light lithium, also known as lithium 6 (63Li, m = 6.015121 u), and heavy hydrogen, also known as deuterium (21H, m = 2.0140 u), fuse to form two nuclei of ordinary helium (42He, m = 4.00260 u).
1. Write this reaction out in symbolic form.
2. What is the mass defect when one molecule of lithium 6 deuteride is transformed into two atoms of helium? State your answer in…
1. atomic mass units
2. megaelectronvolts
3. joules
4. kilograms
2. Calculate the binding energy (in MeV) liberated in each of the following nuclear reactions.
1. Alpha decay

21084Po → 20682Pb + 42He

2. Beta decay, isolated

10n → 11H + 0−1e + 00ν

3. Beta decay, nucleic

3215P → 3216S + 0−1e + 00ν

4. Neutron capture

10n + 10345Rh → 10445Rh

5. Fusion

21H + 21H → 31H + 11H

6. Fission

10n + 23592U → 14156Ba + 9236Kr + 310n

This question is also available as a standalone worksheet.