Atoms and the Quantum Realm (if 2 words, no spaces between words)

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Across
  1. 2. – Two or more atoms bonded together
  2. 5. – Lowest energy level of an electron
  3. 7. – Negatively charged particle around the nucleus
  4. 10. – Area where electrons are found
  5. 11. – Specific amount of energy an electron can have
  6. 13. – Pattern of energy movement
  7. 14. – Very small piece of matter or energy
  8. 17. – Positively charged particle in the nucleus
  9. 19. – A fundamental physics theory describing matter and energy at the smallest of scales
Down
  1. 1. – Particle of light energy
  2. 3. – Energy that travels as waves and particles
  3. 4. – Diagram showing the parts of an atom
  4. 6. – Neutral particle in the nucleus
  5. 8. – A way to show how something works
  6. 9. – Center of an atom
  7. 10. – Substance made of one kind of atom
  8. 12. – When an electron gains energy
  9. 15. – To take in energy
  10. 16. – To give off energy
  11. 18. – Smallest unit of matter