Radioactivity

Radioactivity

Particles
1. Alpha
  1. Skin and paper
  2. 2 protons twos neutrons
    1. Helium atom without electrons
      1. When alpha gains two electrons it becoems a helium atom and is no longer ionising
2. Beta
  1. Stopped by aluminium
  2. One electron configuration
  3. High speed electron
3. Gamma
  1. Most dangerous outside body
  2. Electromagnetic wave
  3. Stopped Lead and concrete
  4. Short wave length
Ionisation
1. When radiation passes an atom it removes an outer electron, making the target atom an ion
Uses
1. Radiotherapy
  1. Destroy cancer cells
2. Tracers
  1. find leaks in underground pipes
  2. track dispersal of waste
3. Smoke Alarms

Resource summary

	Created by Jack Milligan about 8 years ago