Properties for alpha beta and gamma ray particles Flashcards
1
Q
First property: Range in air.
A
Alpha particles= Large, Travel around 5cm in the air before colliding with air particles and stop.
Beta Particles= Travel further + reach 15cm in the air before stopping.
Gamma Rays: Travels several meters in the air before stopping.
2
Q
Second Property Penetrating Power:
A
- Alpha particles; Stopped by a single sheet of paper.
- Beta Particles: Stopped by a few mm of alliminium.
- Gamma Rays: Stopped by several cm of lead.
3
Q
Third Property: Ionising Power.
A
- When radiation collides with atoms, that can cause the atom to loose electrons and form ions.
- Alpha Particles: Very strong ionising,
- Beta Particles: Quite Strongly ionsing.
- Gamma Rays: Weakly ionising.