1. Periodic Table Trends

2. Objectives:
I can review the properties of the periodic table
Agenda for today:

3. Quiz Recap
Homogeneous Mixture vs Heterogeneous Mixture
Element vs compound
Mass number, atomic number, # of neutrons
ER relationship to Bohr model
Using the handout
Electron Configuration and Orbital diagrams

4. Utilizing the Chart

5. Quiz Correction Policy -Due by wednesday -Earn up to a 60% back

6. Lab Update
-Shoes
-Long pants
-No droopy sleeves
-safety contract due
-Hair tied up, bring hair ties

7. Let’s Review the Periodic Table Properties -15 min to work, review it

8. Independent Practice
-Read pg and
-Take notes, on vocabulary/key terms/ideas
-once finished pick up review sheet
-Complete Review questions

9. Electron Configuration Battleship

10. Day 2 -Review Quiz -Lecture Review -what is the order game
-Review Wkshts
-Electron Configuration Battleship
HW: Due Thursday

11. Objectives:
-I can order elements based on periodic trends
- I can explain the key vocabulary associated with periodic trends

12. **Quiz Review **Lab reminder

13. Orbitals

14. Valence electrons
**Goal of an element/atom
**Octet: Noble gas ambitions when forming compound
**Electron dot

15. Periodic Trend: A

16. Example: Lithium Fluorine

17. Independent Practice Name Orbital diagram Valence e- #
Electron dot structure
Magnesium
Carbon
Nitrogen
Iodine
*Extra Practice Challenge
Cesium
*Extra Practice Challenge*

18. Ions
** Charged atom, not neutral
**Differences in proton and electron numbers
*Periodic Table: A

19. Cation VS Anion

21. Practice: Draw Orbital Diagrams
Chlorine Atom
Chlorine Ion
( cation or anion )
( charge: )
Argon

22. Electron Shielding
-Occurs in electrons located between valence electrons and nucleus
-Basically, as add more shells, attraction between nucleus and outer electrons decreases

23. Atomic Radius: -Measure from nucleus to outer electron cloud

24. Atomic Size Trend
WHy
Go across increase in electrons and protons, fill up orbital, higher attraction, shielding decreases
Go down, shielding takes over, more space as fill up another level

25. ****How does the atomic radius compare?****
IONIC RADII
-Cation: Smaller
-Anion: Larger

26. Metallic Character:
-How reactive a metal is… how likely it is to be involved in a reaction
-Metals lose e- in chemical reactions
-As go across, decrease in metallic character
-As go down, increase in metallic character

27. Reactivity: Both Metals and Nonmetals
-As saw: Metals as go down increase in reactivity
BUT
Nonmetals: as go down, decrease in reactivity
**nonmetals want to gain a electron rather than lose one

28. Ionization Energy

29. Ionization Energy
- Energy required to remove an electron
-As across, increase in value
-As go down, decreases in value
WHY?!?!?!?!?

31. Electronegativity
-Ability to attract electrons
-As go across, increase
-As go down, decreases
WHY?!?!?!?!?

32. Why does it have no values?

33. Finish Packet from yesterday
Review Worksheet
-Will be collected for points, due
tomorrow
-If finish early, work on project
Reminder: Lab day tomorrow: Hair up, Appropriate shoes and clothing

34. Break!! Electron Configuration Battleship