1. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com PERIODIC TRENDS

2. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com What’s the Word?  The overall size of an atom, the nucleus and electrons. _ _ _ _ _ _ _ _ _ _ _ _  The overall size of an atom, the nucleus and electrons. _ _ _ _ _ _ _ _ _ _ _ _ A T O M I C R A D I U S

3. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

4. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

5. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

6. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

7. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

8. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

9. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

10. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

11. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

12. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

13. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

14. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

15. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

16. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

17. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

18. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

19. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

20. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

21. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Can You Figure it Out?  Offer an explanation for how Fluorine could be smaller than carbon.

22. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Electrostatic Attraction  The more protons you get, the stronger the positive charge, which means the closer the electrons will be ELECTROSTATIC ATTRACTION

23. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Atomic Radius  The atomic radius of an element increases within a group (column) and decreases within a period (row) SMALLER LARGER

25. TRENDS OF THE TABLE Lewis Dot Diagram = Valence Electrons Atomic Radius = Size of the Atom Smaller Radius = Stronger Nucleus Larger Radius = More Levels BCNOF AlSiPSClAr Ne HeH Li Na K Rb Cs Be Mg Ca Sr Ba TiScVMnFeCoNiCrCuZn GaGeAsSeBr InSnSbTeIXe Kr TlPbBiPoAtRn PtAu ZrYNbTcMoRuRhPdAgCd TaHfWOsReIrHg La

26. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Atomic Radius (Transition Metals)  The pattern of the transition metals is more complicated because of the 3d orbitals. 3d Orbitals

27. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

28. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Sodium (Na) has a larger atomic radius

29. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM Smaller Radius = Stronger Nucleus Larger Radius = More Levels

30. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is smaller? (smaller atomic radius)  Which element is smaller? (smaller atomic radius)

31. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Phosphorus (P) has a smaller atomic radius

32. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM Smaller Radius = Stronger Nucleus Larger Radius = More Levels

33. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

34. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Sulfur (S) has a larger atomic radius

35. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM Smaller Radius = Stronger Nucleus Larger Radius = More Levels

36. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is smaller? (smaller atomic radius)  Which element is smaller? (smaller atomic radius)

37. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Arsenic (As) has a smaller atomic radius

38. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM Smaller Radius = Stronger Nucleus Larger Radius = More Levels

39. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is smaller? (smaller atomic radius)  Which element is smaller? (smaller atomic radius)

40. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Silver (Ag) has a smaller atomic radius

41. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM Smaller Radius = Stronger Nucleus Larger Radius = More Levels PLAY ATOMIC RADIUS VIDEO

42. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Put these elements in order from large to small 1 23

43. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM 1 23 Smaller Radius = Stronger Nucleus Larger Radius = More Levels

44. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Put these elements in order from large to small 1 23

45. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM 1 23 Smaller Radius = Stronger Nucleus Larger Radius = More Levels

46. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Put these elements in order from small to large 1 2 3

47. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM 1 2 3 Smaller Radius = Stronger Nucleus Larger Radius = More Levels

48. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Put these elements in order from small to large 1 23

49. HHe LiBeBCNOFNe NaMgAlSiPSClAr KCaScTiVCrMnFeCoNiCuZnGaGeAsSeBrKr RbSrYZrNbMoTcRuRhPdAgCdInSnSbTeIXe CsBaLaHfTaWReOsIrPtAuHgTlPbBiPoAtRn TRENDS OF THE TABLE ATOMIC RADIUS = SIZE OF THE ATOM 1 2 3 Smaller Radius = Stronger Nucleus Larger Radius = More Levels

50. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is smaller? (smaller atomic radius)  Which element is smaller? (smaller atomic radius)

51. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Xenon is smaller!

52. Xenon is totally stable!

53. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is smaller? (larger atomic radius)  Which element is smaller? (larger atomic radius)

54. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Argon (Ar) has a smaller atomic radius

55. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Argon is totally stable!

56. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is smaller? (smaller atomic radius)  Which element is smaller? (smaller atomic radius)

57. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  They are the same size!

58. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com They are the same size!

59. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  Which element is bigger? (larger atomic radius)  Which element is bigger? (larger atomic radius)

60. Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com Do You Get It Yet?  They are the same size!

61. They are the same size!