Across
- 3. worked on the Britian's Manhattan Project
- 4. slows down neutrons for bombardment
- 6. thyroid treatment
- 9. used to photograph lungs
- 10. decay that involves medium penetration
- 12. father of the atomic bomb
- 13. type of electron captured in electron capture
- 15. particle in nucleus
- 17. created the first sustaining nuclear fission reaction
Down
- 1. particle with no mass and positive charge
- 2. decay with the most penetrating power
- 5. the property of nucleus to change spontaneously
- 6. used in internal wire radio therapy
- 7. discovered radioactivity
- 8. atoms with same number of protons
- 11. accident in which the control rods failed
- 14. decay in which helium particles are emitted
- 16. discovered Po and Ra