1. Happy Birthday Ferdinand Porsche (1875) Read for Tuesday Read for Tuesday Chapter 4: Sections 1-3 Chapter 4: Sections 1-3 HOMEWORK – DUE Tuesday 9/8/15 HOMEWORK – DUE Tuesday 9/8/15 HW-BW 3.1 (Bookwork) CH 3 #’s 3, 4, 11-24 all, 26, 27 HW-BW 3.1 (Bookwork) CH 3 #’s 3, 4, 11-24 all, 26, 27 HW-WS 3 (Worksheet) (from course website) HW-WS 3 (Worksheet) (from course website) HOMEWORK – DUE Thursday 9/10/15 HOMEWORK – DUE Thursday 9/10/15 HW-BW 3.2 (Bookwork) CH 3 #’s 41, 45, 48, 56-61 all, 68, 70, 72, 73, 78, 79, 85, 88, 95, 96, 104, 119, 124 HW-BW 3.2 (Bookwork) CH 3 #’s 41, 45, 48, 56-61 all, 68, 70, 72, 73, 78, 79, 85, 88, 95, 96, 104, 119, 124 HW-WS 4 (Worksheet) (from course website) HW-WS 4 (Worksheet) (from course website) Lab next week Lab next week EXAM 1 IS NEXT THURSDAY EXAM 1 IS NEXT THURSDAY

2. Lab Calculation… Summary Table of Results, Part 4 Mass of Salt AddedDensityMass Percent 3.501 g1.0281 g/mL0.6811% NaCl (aq)

3. Percent Composition How much of each element makes up a compound

4. What is the percent composition of each element in strontium phosphite? Percent Composition

5. What is the percent composition of each element in strontium phosphite? Sr 3 (PO 3 ) 2 Percent Composition

6. A certain compound is 30.06% oxygen by mass and the rest is iron. How many kilograms of the compound are needed in order to obtain 35 kg of iron?

7. PeriodicTableof theElements Periodic: Having or marked by repeating patterns Table: An arrangement of words, numbers, or symbols, or combinations of them, as in parallel columns, to exhibit a set of facts or relations in a definite, compact, and comprehensive form Elements: A substance that cannot be broke down into simpler substances by chemical means

8. : 87 of the 118 elements are metals. They appear on the left side of the Periodic Table. Metals: 87 of the 118 elements are metals. They appear on the left side of the Periodic Table.  Some common properties of metals are:  Solid at room temperature  (except mercury which is a liquid)  Good conductor of heat and electricity  Lustrous on fresh surfaces  Malleable and ductile

9. Metals

10. : Appear on the right side of the Periodic Table. 18 elements are nonmetals. Nonmetals: Appear on the right side of the Periodic Table. 18 elements are nonmetals. Eleven are gases at room temperature (H, N, O, F, Ne, etc.) Eleven are gases at room temperature (H, N, O, F, Ne, etc.) Five are solids (C, P, S, Se, I) Five are solids (C, P, S, Se, I) One is a liquid (Br). One is a liquid (Br). Nonmetals are poor conductors of heat and electricity. Nonmetals are poor conductors of heat and electricity.

11. Non-Metals

12.  Seven elements are metalloids.  Metalloids: Seven elements are metalloids.  Their properties are between those of metals and nonmetals.  Metalloids are semiconductors and are important to the electronics industry.

13. Metalloids

15. The Modern Periodic Table Mendeleev Mendeleev Set up the periodic table based on atomic mass Set up the periodic table based on atomic mass Moseley Moseley Set it up by atomic number rather than atomic mass Set it up by atomic number rather than atomic mass Periodic Law – properties occur in a repeating pattern when set up by atomic number. Periodic Law – properties occur in a repeating pattern when set up by atomic number.

16. The Modern Periodic Table Periods (series) Periods (series) Labeled 1 - 7 Labeled 1 - 7

17. The Modern Periodic Table Groups (families) Groups (families) Columns Columns 2 different labeling systems 2 different labeling systems 1-18 1-18 A-B A-B

18. A few definitions… Main Group Elements: Main Group Elements: Groups 1 and 2 and 13 – 18 Groups 1 and 2 and 13 – 18 Groups A Groups A

19. Main Group Elements

20. A few definitions… Main Group Elements: Main Group Elements: Groups 1 and 2 and 13 – 18 Groups 1 and 2 and 13 – 18 Groups A Groups A Transition Elements: Transition Elements: Groups 3 – 12 Groups 3 – 12 Groups B Groups B

21. Transition Elements

22. Groups of Elements Vertical columns are called groups Vertical columns are called groups Group 1 = Alkali Metals Group 1 = Alkali Metals

23. Alkali Metals

24. Groups of Elements Vertical columns are called groups Vertical columns are called groups Group 1 = Alkali Metals Group 1 = Alkali Metals Group 2 = Alkaline Earth Metals Group 2 = Alkaline Earth Metals

25. Alkaline Earth Metals

26. Groups of Elements Vertical columns are called groups Vertical columns are called groups Group 1 = Alkali Metals Group 1 = Alkali Metals Group 2 = Alkaline Earth Metals Group 2 = Alkaline Earth Metals Group 17 = Halogens Group 17 = Halogens

27. Halogens

28. Groups of Elements Vertical columns are called groups Vertical columns are called groups Group 1 = Alkali Metals Group 1 = Alkali Metals Group 2 = Alkaline Earth Metals Group 2 = Alkaline Earth Metals Group 17 = Halogens Group 17 = Halogens Group 18 = Noble Gases Group 18 = Noble Gases

29. Noble Gases

30. The Modern Periodic Table Main group elements Main group elements Also known as representative elements Also known as representative elements Transition metals Transition metals Inner transition metals Inner transition metals Lanthanide series Lanthanide series

31. Lanthanide Series

32. The Modern Periodic Table Main group elements Main group elements Also known as representative elements Also known as representative elements Transition metals Transition metals Inner transition metals Inner transition metals Lanthanide series Lanthanide series Actinide series Actinide series

33. Actinide Series

34. Diatomic Elements Elements that exist as diatomic molecules when UNCOMBINED (meaning not in a compound with other elements). Elements that exist as diatomic molecules when UNCOMBINED (meaning not in a compound with other elements). H 2, N 2, O 2, F 2, Cl 2, Br 2, I 2

36. Diatomic Elements Elements the exist as diatomic molecules when UNCOMBINED (meaning not in a compound with other elements). Elements the exist as diatomic molecules when UNCOMBINED (meaning not in a compound with other elements). H 2, N 2, O 2, F 2, Cl 2, Br 2, I 2 Examples of when these elements are NOT diatomic NaCl TiBr 4 BiF 5 AlI 3 K3NK3N

37. The mole

38. mole Avogadro’s # particlesmole molar mass grams Only 3 options of what to do with the mole (for now): mole “X” mole-to-mole ratio mole “Y” particles = atoms, molecules, formula units, ions

39. The mole What is the mass of 7.57x10 24 atoms of sodium? How many hydrogen atoms in 63.490 g of barium chloride dihydrate? What is the molar mass of a compound when 6.21x10 21 molecules has a mass of 5.83g