Across
- 2. The time it takes for a radioactive material to decay.
- 5. The amount of radiation absorbed by an object.
- 6. Particles with no specified range. Can be shielded by concrete, lead, and steel.
- 7. The emission of energy from a radioactive source as electromagnetic waves or as subatomic particles.
- 9. Particles with no specified range. Can be shielded by steel, water, and lead.
Down
- 1. Particles with penetrating range of 1-2 inches. Can be shielded by paper or dead skin.
- 3. When an electron is removed from an atom.
- 4. A radioactive material on a surface or liquid that can be transferred to other objects or people.
- 8. Particles with penetrating range of 10 feet. Can be shielded by plastic but not lead.