Across
- 3. The most dangerous form of radiation
- 5. The amount of protons and neutrons in a atom.
- 6. A element with a mass number different than normal
- 8. the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
- 10. A nuclear reaction where two smaller nuclei combine into a bigger one
- 12. A reaction that continuously causes more reactions
- 13. The amount of protons in an atom
- 14. The amount of time it takes for a substance to decay to half of its original mass
Down
- 1. A nuclear reaction where a heavy nucleus spontaneously splits into two
- 2. A particle emitted from a radioactive substance that is equal to one electron
- 4. A particle with a mass of 4 and two protons
- 7. A positively charged particle within the nucleus
- 9. The center of the atom containing neutrons and protons
- 11. a particle within the nucleus that has a mass of 1 and a neutral charge