A: 18 October 2011

1. A: 18 October 2011 • Take Out Homework: Separating a Mixture Lab (procedure and data) • Objective: You will be able to: • … name the 3 subatomic particles and identify their charge, mass and location • …relate atomic number to the number of each subatomic particle. • Do now: Make a KWL chart. Fill in Know and Want To Know for The Atom.

2. Agenda • Do now/Collect Separating a Mixture Lab • Rutherford’s Experiment Demo • Subatomic particle notes and using the periodic table • Practice problems • Exit Ticket Homework: Week 7 HW page 1-3: Fri. Quiz Fri. Obj. 1, 2 and 3 Watch isotopes (link on blog) video and take notes: by Fri.

3. Structure of an Atom Atom: Smallest particle of matter with the properties of that element

4. Subatomic Particles • Sub: beneath, under, within • Atomic: the atom

5. The atom • Protons • In nucleus • Positive charge • Neutrons • In nucleus • Neutral charge Nucleus -most of the mass of the atom is here Electrons -orbit nucleus -negative charge

6. Introduction to the Periodic Table What information does the Periodic Table give us?

7. SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table and write names and symbols for ions.

8. Groups (down columns) Periods (across rows) SWBAT model atomic structure and relate valence shell electrons to trends on the periodic table and write names and symbols for ions.

9. Group Numbers 1 18 2 13 14 15 16 17

10. 6 C Carbon 12.011 Atomic Number (= number of protons) Element Symbol Element Name Average atomic mass

11. Protons: defining an atom • Atomic number: Atoms of different elements have different numbers of protons.

12. Protons and Electrons • Atoms are neutral • Same number of protons and electrons • Ex: Carbon has 6 protons and 6 electrons • 6+ and 6- • What is the net charge?

13. Subatomic particles in atoms

14. - + 0 0 + -

16. A: 20 October 2011 • Objective: You will be able to: • relate atomic number to the number of each subatomic particle. • model isotopes as nuclear and hyphen notation and calculate average atomic mass. • Do now: Fill in the second line of your chart from Monday for the atom drawing on the board.

17. Agenda • Do now • Subatomic particle notes and using the periodic table • Practice problems • Modeling atomic structure • Exit Ticket Homework: Week 7 HW page 1-3: tomorrow. Quiz tomorrow. Obj. 1, 2 and 3 Video notes

18. Quiz Objectives • 7 contributors to atomic theory: know their name and their contribution (matching) • 3 subatomic particles, charge, mass, location • Modeling (sketching) an atom

19. - + + 0 0 0 + - -

20. - - + - 0 + 0 0 0 + + 0 - - +

21. - - - + + - 0 + + 0 0 - 0 + 0 0 + + 0 - -

22. - - - + 0 0 0 + + + - 0 + + 0 0 - 0 + 0 0 + + 0 - + - - - -

23. - - - + 0 - 0 0 0 + + + - 0 + + 0 0 - 0 + 0 0 + + + 0 - + - - - -

24. - - - 0 + + + - 0 + + 0 0 - 0 + 0 0 + + 0 - - -

26. Which element…? • Has 20 protons?

27. Which element…? • Has 15 protons?

28. Which element…? • Has 17 protons?

29. Which element…? • Has 53 protons?

30. Which element…? • Has 79 protons?

31. Which element…? • Has 40 electrons?

32. Which element…? • Has 77 electrons?

33. Which element…? • Has 50 electrons?

34. Which element…? • Has 118 electrons?

35. 6 C Carbon 12.011 Atomic Number (= number of protons) Element Symbol Element Name Average atomic mass

36. Trends in Atomic Numbers • Atomic numbers increase to the right and down the Periodic Table of the Elements. • Check it out.

37. Increasing atomic number Increasing atomic number

38. A: 21 October 2011 • Objective: You will be able to: • relate atomic number to the number of each subatomic particle. • model isotopes as nuclear and hyphen notation and calculate average atomic mass. • Do now: Add one row to the table from yesterday and fill it in for the drawing on the board.

39. Agenda • Do now • Modeling atomic structure • Quiz on Objectives 1, 2 and 3 • Isotopes and average atomic mass Homework: Week 7 HW page 4-7: Tuesday Watch video on YouTube: Electron Configuration (Find it on the blog!): Weds.

40. Modeling Location of the Subatomic Particles • Use your modeling kit to make an atom of each of the elements listed on the worksheet. • Answer the questions as you go along. • Don’t worry about the neutrons – we’ll talk about those next. • Complete the back of the worksheet. • Once you finish, do #9 on the homework

41. Quiz • Objectives 1, 2 and 3 • When you finish: • turn it in • do numbers 8 and 9 on your week 7 HW

42. Neutrons • The number of protons in atoms of an element is always the same. • carbon always has six protons! • The number of neutrons in atoms of the same element is NOT always the same! • carbon can have 6, 7 or 8 neutrons!

43. Isotope • Definition?

44. Isotopes: Using Hyphen Notation • element-mass number • carbon-12 • 6 protons (carbon always has six) • How many neutrons? • carbon-14

45. Nuclear Notation • What is the nuclear symbol for carbon-14? • What about boron with 5 neutrons? • What about boron with 6 neutrons?

46. Practice • Complete #1 on handout

47. 20 October 2011 • Take Out: Week 7 Homework • Objective: You will be able to: • show what you know about objectives 1-3 • model isotopes as nuclear and hyphen notation • calculate average atomic mass (this is not a silent Do Now) • Do now: Quiz your partner on the 7 contributors to atomic theory and their discoveries!

48. Agenda • Do now/review • Go over homework p. 1-3 • Obj. 1-3 quiz • Review hyphen notation and nuclear notation • Calculating average atomic mass • Candium pre-lab! Homework: Week 7 Homework p. 4-7: Tues.

49. Quick Review • Write the hyphen notation and the nuclear notation for: • the isotope of copper with 34 neutrons • the isotope of copper with 36 neutrons

50. Isotopes and Average Atomic Mass • So. That number underneath the element’s name. • What. is. it.