Unit 3 Crossword

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Across
  1. 3. Inner structure of atoms
  2. 5. Examples: Fluorine, Chlorine, Iodine, Bromine, Astatine
  3. 6. something with same number of protons but not same neutrons
  4. 7. rate of occurrence
  5. 8. positively charged ion
  6. 9. distance between waves
  7. 11. Examples: Helium, Neon, Argon, Krypton, Xenon, and Radon
  8. 15. radiation consisting of electromagnetic waves
  9. 17. Examples: Barium, Radium, Strontium, Calcium, Magnesium
  10. 19. nature of all matter
  11. 20. mass of an isotope
  12. 21. an optical device for producing and observing a spectrum of light orradiation from any source,
  13. 23. dalton
  14. 24. have unstable nuclei
  15. 25. negatively charged particle
  16. 29. high energy vs low energy
  17. 31. distance light can travel in a year
  18. 32. Vertical rows on periodic chart
  19. 34. radiation in the form of elementary particles emitted by anatomic nucleus,
  20. 37. number of protons in an atom
  21. 38. Abundance of isotopes
  22. 42. horizontal rows on periodic chart
Down
  1. 1. 1A, 2A, 3A, 4A, 5A, 6A, 7A, 8A
  2. 2. spectrum formed by electromagnetic radiations emitted by agiven source,
  3. 4. atomic weight
  4. 10. what makes an atom experience a force when close to other electrically charged matter
  5. 12. complete range of electromagnetic radiation from the longestradio waves
  6. 13. Elements in the middle of periodic chart
  7. 14. very small specks of energy
  8. 16. unit smaller than atom
  9. 18. negatively charged ion
  10. 22. positively charged particle
  11. 26. a comparative level of capacity for vigorous activity
  12. 27. smallest component of an element
  13. 28. quantum of electromagnetic radiation
  14. 30. electrically charged atom
  15. 33. anions and cations
  16. 35. any sudden and significant change
  17. 36. Examples: Potassium, Sodium, Lithium, Rubidium, and Cesium
  18. 39. a series of lines in the visible spectrum of hydrogen
  19. 40. neutral particle
  20. 41. core of atom