Crossword Puzzle Review for Atomic Structure

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