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Topic Content:
- Characteristics of Alpha, Beta and Gamma Emission
- Deflection in a Magnetic Field
The table below describes the characteristics of beta, alpha and gamma radiations and compares the masses and charges of the three rays.
Characteristics of Alpha, Beta and Gamma Emission:
| Particle, Symbol | Notation | Composition | Charge | Mass | Penetrating power | |
| 1. | Alpha α | \( \scriptsize _{2} ^{4} \textrm {He}\) | 2 protons 2 neutrons | +2 | 6.6466 × 10–27 kg | Low |
| 2. | Beta, β | \( \scriptsize _{-1} ^{0} \textrm {e}\) | Electron | -1 | 9.109 × 10–31 kg | 100 times greater than that of alpha |
| 3. | Gamma, γ | \( \scriptsize _{0}^{0}\textrm {}\gamma \) | Electromagnetic waves | 0 | 0 | Very great. i.e. It has the greatest penetrating power. |
Deflection in a Magnetic Field:
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