Across
- 2. This type of radiation travels as a wave.
- 4. A different form of an element is known as an _________
- 5. The time taken for a radioactive element to decay by half.
- 6. Beta radiation can be stopped by this.
- 8. How can we use radiation to find out the age of dead material?
- 10. A radioactive element.
- 11. This type of radiation travels as an electron.
Down
- 1. Alpha radiation can be stopped by this.
- 2. This piece of equipment is used to detect levels of radiation.
- 3. Gamma radiation can be stopped by this.
- 7. All radioactive atoms have an ___________ nucleus.
- 9. This type of radiation is a helium nucleus.