Across
- 2. When two small nuclei become one bigger nucleus
- 7. Important factor in determining an atoms stability
- 8. Number that determines an element
- 10. the time needed for a radioisotope to decay half way
- 11. An isotope that emits radiation
- 12. Particle emitted when a neutron splits into a proton and an electron
- 13. Determines what the element is
Down
- 1. The emission of ionizing radiation caused by the sudden disintegration of an atom's nucleus
- 3. Atoms of the same element with different amounts of neutrons
- 4. Number that cant be found on the periodic table, only with math
- 5. Reaction that only involves the nucleus of an atom
- 6. Radiation with no mass and no charge
- 8. Particle emitted when the nucleus of an atom becomes unstable, emitted to restore balance
- 9. When a high energy neutron hits the nucleus of a radioisotope and splits the nucleus