Crossword Puzzle for Atomic Structure

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Across
  1. 2. all __________, including visible light, travel at the speed of 3.00 x 10^8 m/s in a vacuum
  2. 4. wavelength times frequency
  3. 8. when an atom absorbs energy and electrons move from ground state to this state
  4. 9. the quantum mechanical composition of the atom shows the _________ of finding electrons within an electron cloud of an atom
  5. 11. atoms with a negative charge have more electrons than protons
  6. 12. the number written as a right superscript
  7. 13. atoms that has enough binding energy to hold the nucleus together permanently
  8. 15. basic unit of energy
  9. 17. element with the atomic mass of 56 (when rounded to the nearest whole number)
  10. 18. the emission of electrons when electromagnetic radiation, such as light, hits a material
  11. 21. letter that atomic number is represented by (hint: add "letter" in front of the actual variable)
  12. 24. an element with the atomic mass of 58.933, 27 protons and electrons, and 32 neutrons
  13. 26. the sum of protons and neutrons in a particular atom of an element
  14. 27. everything is made up of
  15. 30. a tiny object made entirely of protons and neutrons
  16. 32. a species of atoms that have a given number of protons in their nuclei
  17. 33. color with higher energy and higher frequency
  18. 35. Rutherford shot ______ particles t a very thin sheet of gold foil
  19. 36. sub-atomic particles with a +1 charge
  20. 37. atoms with a positive charge have fewer electrons than protons
  21. 41. minimum amount of energy that can be gained or lost by an atom
  22. 42. sub-atomic particles with a zero charge
  23. 43. Gold Foil Experiment was made by
  24. 44. positively charged atoms will ________ positively charged nuclei
Down
  1. 1. abbreviations used in chemistry for chemical elements, functional groups and chemical compounds
  2. 3. an element with an atomic mass of 83.798, 36 protons and electrons, and 48 neutrons
  3. 5. atoms with the same number of protons but different numbers of neutrons
  4. 6. the wavelength region from about 400 to 700nm
  5. 7. color with lowest energy and lowest frequency
  6. 10. the distance between identical points or adjacent crests in the adjacent cycles of a waveform signal (measured in meters)
  7. 14. smaller sub-atomic particles than protons and neutrons with a charge of -1
  8. 16. ​the region of negative charge surrounding an atomic nucleus that is associated with an atomic orbital
  9. 19. the rate at which current changes direction per second (measured in hertz)
  10. 20. an element with the atomic mass of 196.97, 79 protons and electrons, and 118 neutrons
  11. 22. the range of frequencies of electromagnetic radiation
  12. 23. number of electrons in a Boron ion with a +2 charge
  13. 25. the number of protons
  14. 28. letter that atomic mass number is represented by (hint: add "letter" in front of the actual variable)
  15. 29. atomic symbol Ca
  16. 31. atoms has an equal number of electrons and protons
  17. 34. an atom that has gained or lost one or more electrons
  18. 36. wavelengths determine the frequency of this
  19. 38. the atomic mass of helium when rounded to the nearest whole number
  20. 39. when an atom emits energy and electrons move from excited state to this state
  21. 40. the innermost shell of electrons surrounding an atomic nucleus and constituting the lowest available energy level for the electrons