1. IIIIII Periodic Trends The Periodic Table

2. Periodic Law zWhen elements are arranged in order of increasing __________ __________, elements with similar properties appear at __________ intervals

3. C. Johannesson zAtomic Radius y_________________ © 1998 LOGAL zFirst Ionization Energy y_______required to _________one e - from a ________atom. © 1998 LOGAL zMelting/Boiling Point Properties

4. C. Johannesson zAtomic Radius Atomic Radius Li Ar Ne K Na

5. C. Johannesson zAtomic Radius yIncreases to the ______and ________ Atomic Radius

6. C. Johannesson zWhy larger going down? y_______energy levels have larger _______ yShielding - core e - ______the attraction between the nucleus and the ________ e - zWhy smaller to the right? yIncreased nuclear _______without additional shielding ______e - in tighter Atomic Radius

7. C. Johannesson zFirst Ionization Energy Ionization Energy K Na Li Ar Ne He

8. C. Johannesson zFirst Ionization Energy yIncreases ______and to the ______ Ionization Energy

9. C. Johannesson zWhy opposite of atomic radius? yIn small atoms, e - are ______to the nucleus where the attraction is ________ zWhy small jumps within each group? y________e - configurations ______ want to lose e - Ionization Energy

10. C. Johannesson zSuccessive Ionization Energies yMg1st I.E.736 kJ 2nd I.E.1,445 kJ Core e - 3rd I.E.7,730 kJ yLarge jump in I.E. occurs when a ______e - is removed. Ionization Energy

11. C. Johannesson yAl1st I.E.577 kJ 2nd I.E.1,815 kJ 3rd I.E.2,740 kJ Core e - 4th I.E.11,600 kJ zSuccessive Ionization Energies yLarge jump in I.E. occurs when a CORE e - is removed. Ionization Energy

12. C. Johannesson zMelting/Boiling Point yHighest in the ________of a period. Melting/Boiling Point

13. C. Johannesson zIonic Radius yCations (+) x_____e - xsmaller © 2002 Prentice-Hall, Inc. yAnions (–) xgain e - x_______ Ionic Radius

14. Electronegativity z________________ refers to the ability of an atom to attract the __________ of another atom to it when those two atoms are associated through a _________. zElectronegativity is based on an atom's _________ energy and electron ________

15. Electronegativity

16. C. Johannesson zWhich atom has the larger radius? yBeorBa yCaorBr ___ Examples

17. C. Johannesson zWhich atom has the higher 1st I.E.? yNorBi yBa orNe __ Examples

18. C. Johannesson zWhich atom has the higher melting/boiling point? yLiorC yCrorKr __ Examples

19. C. Johannesson zWhich particle has the larger radius? ySorS 2- yAlorAl 3+ __ Examples

20. C. Johannesson zWhich element is the most electronegative? yArorCl yK or Fe __ Examples