Radioactivity
Across
- 1. An electromagnetic wave
- 4. Has two common isotopes 235 and 238
- 8. Stops alpha radiation
- 9. Nuclear power plant in Japan that suffered radiation leaks and damaged reactors
- 11. The S.I unit of radiation
- 12. The length of time it takes for half of the atoms of an isotope to decay
- 13. Metal that stops Alpha and beta radiation but not gamma
- 15. Atoms with the same number of protons but different number of neutrons
- 17. when an atom spontaneously ejects a particle and changes into a different type of atom
Down
- 1. used to detect radiation
- 2. Won 2 nobel prizes and discovered Radium and Polonium
- 3. The type of nuclear radiation with a +2 charge
- 5. 1986 nuclear disaster
- 6. A fast moving nuclear electron
- 7. This nuclear particle changes into a proton and an electron to initiate beta decay
- 10. The nucleus of this atom is the same as an alpha particle
- 14. The name of the bomb dropped on Hiroshima
- 16. Metal that stops alpha and beta and most of gamma radiation