Across
- 4. Electromagnetic radiation of high frequency
- 7. A form of radiation which energy is emitted and absorbed by charged particles
- 9. Radiation composed of particles that individually carry enough kinetic energy to liberate an electron from an atom or molecule
Down
- 1. A particle made up of two protons and two neutrons.
- 2. Radiation of energy by means of fast-moving subatomic particles
- 3. Radiation that is constantly present in the environment and is emitted from a variety of natural and artificial sources
- 5. A type of subatomic particle ejected from the nucleus of some radioactive atoms.
- 6. The emission of energy as electromagnetic waves or as moving subatomic particles
- 8. Radiation in part of the part of the electromagnetic spectrum where there is insufficient energy to cause ionization
