Ions are formed from an uncharged atom by adding or removing electrons.α, β and γ radiation create ions when they pass through matter and collide with atoms.Electrons collide with atoms of gas in a fluorescent tube and cause ionisation.
Ionisation
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Specification: AQA Physics (7407), AS-level, 3.2.2.2 Collisions of electrons with atoms. Topic: The Photoelectric Effect.
More in The Photoelectric Effect
- Explanation of the Photoelectric Effect
- The Stopping Potential
- Planck's Quantum Theory
- The Vacuum Photocell
- Measuring Ionisation Energy
- Energy of Electrons
- Electron Excitation by Collisions
- Excitation Using Photons
All 19 lessons in The Photoelectric Effect · All AQA AS-level Physics topics