Across
- 2. A sequence of reactions where a reactive product or by-product causes additional reactions to take place
- 6. The visible spectrum of electromagnetic radiation
- 7. A nuclear reaction can be described by a ______________, which must be balanced
- 8. A penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy
- 10. Consists of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of _____ decay
- 12. Samples of an element with different numbers of neutrons in their atoms
- 13. A process in which the nucleus of an atom is changed by being split apart or joined with the nucleus of another atom
- 14. A graphical representation of the exponential rate at which radioactive disintegration occurs
- 15. The emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
Down
- 1. A reaction in which two or more atomic nuclei are combined to form one or more different atomic nuclei and subatomic
- 3. The process by which an unstable atomic nucleus loses energy by emitting radiation
- 4. The time taken for the radioactivity of a specified isotope to fall to half its original value
- 5. A high-energy, high-speed electron emitted by the radioactive decay of an atomic nucleus during the process of ____ decay
- 9. The total number of protons and neutrons in a nucleus
- 11. A nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts