Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com PERIODIC TRENDS.

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Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com PERIODIC TRENDS

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

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

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

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

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

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

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

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

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

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

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

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

Copyright 2011 CreativeChemistryLessons.comCreativeChemistryLessons.com

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Xenon is totally stable!

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

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

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

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

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

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

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

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

They are the same size!