Chemistry Vocab. #4
Across
- 2. state An atom's lowest energy state.
- 5. Emissions of electrons from the cathode, travel in straight lines, unaffected by gravity.
- 6. Positively charged ions with a mass of about 7300 electrons.
- 7. Positive particles in the nucleus.
- 8. Engery emissions come only in certain amounts or quantities
- 11. of definite composition States that every compound is formed of elements combined in specific ratios by mass that are unique for that compound.
- 13. A spectrum showing only certain colors or wavelengths of light.
- 14. The smallest particle capable of chemical interactions
- 15. It is impossible to know both the energy or momentum and the exact position of an electron at the same time.
- 17. Neutral particles in the nucleus.
Down
- 1. A region around the nucleus containing the main or principal energy level in which an electron is found.
- 3. massless particles in light
- 4. Suggests that if waves could behave like particles, then particles could behave like waves
- 5. A complete visual spectrum with no frequency gaps, emitted only by an ideal luminous object.
- 9. Three-dimensional regions of probable position
- 10. The dense central part of an atom made up of protons and neutrons, virtually contains all the atom's mass, but very little of it's volume.
- 12. Number of protons in the necleus.
- 16. Negatively charged particles.