1. Subatomic Particles Agenda   Review   GAME   Song   Notes   Guided practice   Homework

2. Around the World Game Element Review

3. strontium Sr

4. manganese Mn

5. Ba barium

6. boron B

7. Ca calcium

8. Zn zinc

9. Al aluminum

10. silicon Si

11. iron Fe

12. C carbon

13. gallium Ga

14. cobalt Co

15. magnesium Mg

16. Be beryllium

17. Ti titanium

18. Ge germanium

19. potassium K

20. nickel Ni

21. P phosphorus

22. nitrogen N

23. Cu copper

24. H hydrogen

25. lithium Li

26. Na sodium

27. chromium Cr

28. V vanadium

29. tin Sn

30. scandium Sc

31. Pb lead

32. arsenic As

33. O oxygen

34. sulfur S

35. Se selenium

36. fluorine F

37. Cl chlorine

38. bromine Br

39. I iodine

40. helium He

41. Ne neon

42. argon Ar

43. Kr krypton

44. xenon Xe

45. Rn radon

46. Song Time

47. Atomic Theory Polka  Dalton, Thomson, Rutherford and Bohr. Schrödinger and Heisenberg, and many, many more. Used their brains to venture in the realm of inner space and found the world of the atom was a weird and wondrous place.

48.  Dalton did experiments and said, “I think it’s clear, atoms are tiny indestructible spheres.”

49.  Thomson worked with cathode rays and said, “I disagree. A plum-pudding model makes much more sense to me.”

50.  A new chapter in atomic theory started to unfold when Rutherford played around with atoms made of gold. When a few of his alpha particles came bounding back, he hypothesized a nucleus had knocked them off the track.

51.  Dalton, Thomson, Rutherford and Bohr. Schrödinger and Heisenberg, and many, many more. Used their brains to venture in the realm of inner space and found the world of the atom was a weird and wondrous place.

52.  Bohr saw spectral lines for hydrogen and said, “It seems to me.. Electrons move in orbits with specific energies.”

53.  Heisenberg said, “Forget it, there’s no way to know the orbit or a path, where the electron’s gonna go.”

54.  Schrödinger used lots and lots of fancy mathematics, and made a model of the atom based on quantum mechanics. It has orbitals and those are based on probability. The atom is a fuzzy blob of pure uncertainty.

55.  Dalton, Thomson, Rutherford and Bohr. Schrödinger and Heisenberg, and many, many more. Used their brains to venture in the realm of inner space and found the world of the atom was a weird and wondrous place.

56. What do you know about the atom? White boards

57. Subatomic Particles Date:

58.  PROTONS  p +  In the nucleus  +1 charge  1 amu  ELECTRON  e -  In electron cloud  -1 charge  1 / 1840 amu  NEUTRON  n o  In the nucleus  No charge  1 amu

59. Atomic number  Used to arrange elements in PT by Mosley  # of PROTONS  # of ELECTRONS IF an ATOM

60. Isotopes  Atoms of the same element that differ in the # of neutrons 11p + 11n o 11p + 12n o

61. Atomic Mass  The weighted average of all isotopes.  Always a decimal (unless a man-made element)

62. Mass number  Mass of an isotope  Always a whole number – not on PT  # of PROTONS + NEUTRONS

63. Nuclide  Tells atomic # and mass # of an atom 23 11 Na  Sodium-23 has ____ protons, ___ electrons and ____ neutrons 11 12

64. Practice

65. 32 16 S 16 protons 16 neutrons 16 electrons

66. 28 14 Si 14 protons 14 neutrons 14 electrons

67. 14 6 C 6 protons 8 neutrons 6 electrons

68. Ions  Atoms with a charge

69. CATIONS  Cations are pawsitive and are written with a plus charge on the upper right.  LOST an e-, have more protons; therefore positive.  Charge indicates the number of electrons lost.  Hint: cation has a t which looks like +

70. Lost an e - and a shell 11p + 11n o 11p + 11n o

71. ANIONS  Anions are negative and written with a negative charge on the upper right.  GAINED an e-, have more electrons; therefore negative.  Charge indicates number of electrons gained.

72. Has an additional electron! 9p + 10n o 9p + 10n o

73. 36 17 Cl -  _____ protons _____ neutrons _____ electrons 17 18 19

74. Practice

75. 16 8 O -2 8 protons 8 neutrons 10 electrons

76. 108 47 Ag + 47 protons 61 neutrons 46 electrons

77. 80 35 Br - 35 protons 45 neutrons 36 electrons

78. 207 82 Pb +4 82 protons 125 neutrons 78 electrons

79. Homework   Element Quiz tomorrow!   Last one!   Be prepared for lab tomorrow!   Want to try to complete tomorrow   Complete subatomic chart