Atomic Structure Crossword Puzzle Review

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Across
  1. 2. The number of protons in Beryllium.
  2. 7. The ______ depends on the number of protons, the number of neutrons, and the number of electrons.
  3. 8. ______ would mean that there is a shorter wavelength.
  4. 14. What are atoms with a negative charge that have more electrons than protons?
  5. 15. Model of the atom proposed by JJ Thomson. According to this model, the atom is a sphere of positive charge, and negatively charged electrons.
  6. 17. The element with the atomic symbol of 'Po'.
  7. 20. He conducted the gold foil experiment.
  8. 25. The name of the element with an atomic symbol of 'Sn'.
  9. 26. are sub-atomic particles with a zero charge (they are neutral) and also have a mass of 1 atomic mass unit.
  10. 28. The basic units of matter.
  11. 30. The atomic number of chlorine.
  12. 31. The innermost shell of electrons containing the lowest available energy level for the electrons.
  13. 32. A ______ is emitted when an electron makes a transition from a higher energy level to a lower energy level.
  14. 33. The number of protons in the element argon.
  15. 34. are sub-atomic particles with a+1 charge and a mass of about 1 atomic mass unit.
  16. 35. The ______ of an atom is the number of protons minus the number of electrons.
  17. 37. The name of the element with an atomic symbol of 'Fe '.
  18. 38. What is the mass of an atom with 13 protons and 14 neutrons?
  19. 40. The name of the element with an atomic symbol of 'W'.
  20. 41. a unique single upper-case letter or upper-case plus one lower-case letter symbol.
  21. 42. _____ are toms with either more or fewer electrons than protons.
Down
  1. 1. ______is the amount of energy that can be gained or lost by an atom.
  2. 2. The equation to find it is f=1/T.
  3. 3. The charge of an atom with 12 protons, 13, neutrons, and 10 electrons.
  4. 4. _____ is always unique to each element and can be used to identify it.
  5. 5. The ______ is made of the sum of the number of protons and the number of neutrons.
  6. 6. The number of protons for 31P3-.
  7. 9. What atoms with a positive charge have fewer electrons than protons?
  8. 10. What is the atomic mass of zinc rounded to the nearest whole number?
  9. 11. The segment in the electromagnetic spectrum that the human eye can view.
  10. 12. atomic mass of mercury rounded to the nearest whole number.
  11. 13. The ______ state occurs in an atom when they absorb energy.
  12. 16. The atomic symbol for gold.
  13. 17. h= 6.626 x 10^-34 Js
  14. 18. The ______ is a tiny object made entirely of protons and neutrons.
  15. 19. The unit of wavelength.
  16. 21. What is the atomic mass of silicon rounded to the nearest whole number?
  17. 22. _____ is what determines the frequency (color) of a photon.
  18. 23. The unit of energy.
  19. 24. are even smaller sub-atomic particles than protons and neutrons with a -1 charge and a tiny mass of (0.00054 amu).
  20. 27. This is observed when a substance heated in a flame varies from one substance to another.
  21. 29. The product of multiplying wavelength and frequency.
  22. 32. The ______ is found by subtracting the measured value by the accepted value and dividing by the accepted value then multiplying by 100 to calculate it.
  23. 36. _____ is an acronym that helps us remember the order of colors and that the energy level increases with each one.
  24. 39. Atoms with different numbers of protons.