In an alpha decay, the disintegration energy appears chiefly as:
Correct answer: B. The kinetic energies of the alpha and the daughter nucleus
- A. Photon energies
- B. The kinetic energies of the alpha and the daughter nucleus
- C. The excitation energy of the daughter nucleus
- D. The excitation energy of the alpha particle
Explanation
Option B is the most accurate description. In alpha decay, a heavy, unstable nucleus emits an alpha particle (which is a helium nucleus, consisting of two protons and two neutrons). The disintegration energy is mainly converted into the kinetic energy of the alpha particle and the daughter nucleus as they move apart.
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