Unit One- Ava Morton

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Across
  1. 4. types of electromagnetic radiation
  2. 5. model used to describe the region of negative charge surrounding an atom
  3. 9. arrangement of elements
  4. 11. amount of energy needed to move an electron between energys
  5. 12. impossible to know the speed and position of a particle at the same time
  6. 16. number of protons in the nucleus
  7. 18. math expression describing the probability of finding an electron at various locations
  8. 20. negatively charged subatomic particle
  9. 21. smallest particle of an element
  10. 23. unit of frequency
  11. 24. portion of an atom composed of protons and neutrons
  12. 25. vertical column of elements
Down
  1. 1. one or two letters
  2. 2. horizontal row of elements
  3. 3. lowest energy state of a quantized system
  4. 6. number of wave cycles that pass a given point per unit of time
  5. 7. negatively charged ion
  6. 8. positively charged ion
  7. 10. specific energy an electron in an atom or other system can have
  8. 13. neutral charged subatomic particle
  9. 14. same number of protons but different number of electrons
  10. 15. distance between two adjacent wave crests
  11. 17. simplest form of matter
  12. 19. positively charged subatomic particle
  13. 22. total number of protons and neutrons in an atom