1. + WELCOME! 1.Organize the materials in your folder in your binder 2.Grab a clicker and calculator today. 2. Get out your homework!

2. + No Trash No Detention SIDE TALK RULE Unit 2 Tests Progress Reports Small Business

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4. + Are atoms nice sharers OR mean, evil, disruptive sharers?

5. + 1.Electronegativity: In a ______________ bond, it’s which atom usually has the shared valence electrons. 2.Electronegativity depends on the ________ and the number of _________ __________. 3.____________ is the most electronegative element on the table. Electronegativity

6. + 1.As you move down a periodic table atoms become __________. 2.As you move across the periodic table atoms become _________. Electronegativity

7. + 3.As you move across the periodic table atoms become _________ electronegative. 4.As you move down a periodic table atoms become __________ electronegative. Electronegativity

8. + 5.Polarity measures how _________________ the charges are in an atom. Polarity

9. + 1)Determine the electronegativity of each atom. 2)Subtract the bigger number from the smaller number to get overall polarity. 3)The bond with the largest overall polarity is the most polar Determine which bond is the most polar. N-O, C-O, or B-O

10. + 1)Determine the electronegativity of each atom. 2)Subtract the bigger number from the smaller number to get overall polarity. 3)The bond with the largest overall polarity is the most polar Determine which bond is the most polar. H-F, H-Cl, or H-Br

11. + 6.A polarity arrow pictorially represents the change in charge. 6.The plus end is ________________the arrow end is ________________ Polarity arrows

12. + 1)Determine which atom is more electronegative; it is the negative end 2)The more positive atom receives the positive end. 3)The more electronegative atom receives the negative end Draw the polarity arrows for the following chemical bonds H - Cl S - P

13. + Forensic Pathologist The federal government pays between $59,268 and $218,500 annually

14. + Guided Practice Bankrupt! (with clickers!)

15. + 1000 200 400 300 bankrupt 200 300 700 800 bankrupt Question:

16. + 1000 200 400 300 bankrupt 200 300 700 800 bankrupt Question:

17. + Independent Practice When you are done raise your hand and I will give you a POM You may not use notes on the POM NO SIDE TALK RULE APPLIES!