1. What light is and how it interacts with matter B. Abrams, N. Bassina, D. Dill and A. Golger Boston University Tuesday, August 18, 2015 dan@bu.edu | http://goo.gl/XtS287

2. How does 1s become 2p? An accessible picture of what light is and how it interacts with matter 2 Copyright © 2015 Dan Dill dan@bu.edu

3. As a student, I hadn’t a clue. Now we can do better. And so, a call to action for pedagogical change An accessible picture of what light is and how it interacts with matter 3 Copyright © 2015 Dan Dill dan@bu.edu

4. TL;PTW An accessible picture of what light is and how it interacts with matter 4 Copyright © 2015 Dan Dill dan@bu.edu

5. TL;PTW (Too Long; Prefer To Watch) An accessible picture of what light is and how it interacts with matter 5 Copyright © 2015 Dan Dill dan@bu.edu

6. All 1s An accessible picture of what light is and how it interacts with matter 6 Copyright © 2015 Dan Dill dan@bu.edu

7. Nearly all 1s An accessible picture of what light is and how it interacts with matter 7 Copyright © 2015 Dan Dill dan@bu.edu

8. Some 1s and some 2p An accessible picture of what light is and how it interacts with matter 8 Copyright © 2015 Dan Dill dan@bu.edu

9. Some 1s and some more 2p An accessible picture of what light is and how it interacts with matter 9 Copyright © 2015 Dan Dill dan@bu.edu

10. Some 1s and still more 2p An accessible picture of what light is and how it interacts with matter 10 Copyright © 2015 Dan Dill dan@bu.edu

11. Some 1s and a lot of 2p An accessible picture of what light is and how it interacts with matter 11 Copyright © 2015 Dan Dill dan@bu.edu

12. A little 1s and a lot of 2p An accessible picture of what light is and how it interacts with matter 12 Copyright © 2015 Dan Dill dan@bu.edu

13. A little 1s and a lot of 2p An accessible picture of what light is and how it interacts with matter 13 Copyright © 2015 Dan Dill dan@bu.edu

14. Nearly all 2p An accessible picture of what light is and how it interacts with matter 14 Copyright © 2015 Dan Dill dan@bu.edu

15. Nearly all 2p An accessible picture of what light is and how it interacts with matter 15 Copyright © 2015 Dan Dill dan@bu.edu

16. All 2p An accessible picture of what light is and how it interacts with matter 16 Copyright © 2015 Dan Dill dan@bu.edu

17. What is light? An accessible picture of what light is and how it interacts with matter 17 Copyright © 2015 Dan Dill dan@bu.edu

18. Light is as light does An accessible picture of what light is and how it interacts with matter 18 Copyright © 2015 Dan Dill dan@bu.edu

19. Light tugs on matter … An accessible picture of what light is and how it interacts with matter 19 Copyright © 2015 Dan Dill dan@bu.edu

20. An accessible picture of what light is and how it interacts with matter 20 Copyright © 2015 Dan Dill dan@bu.edu

21. Matter experiences light as an oscillating electric field An accessible picture of what light is and how it interacts with matter 21 Copyright © 2015 Dan Dill dan@bu.edu

22. Light’s oscillating field “tugs” on charges in matter An accessible picture of what light is and how it interacts with matter 22 Copyright © 2015 Dan Dill dan@bu.edu

23. An accessible picture of what light is and how it interacts with matter 23 Copyright © 2015 Dan Dill dan@bu.edu

24. An accessible picture of what light is and how it interacts with matter 24 Copyright © 2015 Dan Dill dan@bu.edu

25. Electron clouds in general don’t move. An accessible picture of what light is and how it interacts with matter 25 Copyright © 2015 Dan Dill dan@bu.edu

26. So what’s “moving” to account for natural frequencies in the visible? An accessible picture of what light is and how it interacts with matter 26 Copyright © 2015 Dan Dill dan@bu.edu

27. What’s moving in H at 656 nm = 4.57×10 14 /s? An accessible picture of what light is and how it interacts with matter 27 Copyright © 2015 Dan Dill dan@bu.edu

28. Light mixes electron waves An accessible picture of what light is and how it interacts with matter 28 Copyright © 2015 Dan Dill dan@bu.edu

29. An accessible picture of what light is and how it interacts with matter 29 Copyright © 2015 Dan Dill dan@bu.edu

30. An accessible picture of what light is and how it interacts with matter 30 Copyright © 2015 Dan Dill dan@bu.edu

31. An accessible picture of what light is and how it interacts with matter 31 Copyright © 2015 Dan Dill dan@bu.edu

32. What about “quantum jumps?” An accessible picture of what light is and how it interacts with matter 32 Copyright © 2015 Dan Dill dan@bu.edu

33. Are we 2p yet? An accessible picture of what light is and how it interacts with matter 33 Copyright © 2015 Dan Dill dan@bu.edu

34. Yes and no … An accessible picture of what light is and how it interacts with matter 34 Copyright © 2015 Dan Dill dan@bu.edu

35. … in proportion to relative 1s and 2p composition An accessible picture of what light is and how it interacts with matter 35 Copyright © 2015 Dan Dill dan@bu.edu

36. no, no, no, no, no, … An accessible picture of what light is and how it interacts with matter 36 Copyright © 2015 Dan Dill dan@bu.edu

37. …, no, no, no, yes, no, … An accessible picture of what light is and how it interacts with matter 37 Copyright © 2015 Dan Dill dan@bu.edu

38. …, no, yes, no, no, yes, … An accessible picture of what light is and how it interacts with matter 38 Copyright © 2015 Dan Dill dan@bu.edu

39. …, yes, no, yes, yes, no, … An accessible picture of what light is and how it interacts with matter 39 Copyright © 2015 Dan Dill dan@bu.edu

40. …, yes, no, yes, yes, yes, … An accessible picture of what light is and how it interacts with matter 40 Copyright © 2015 Dan Dill dan@bu.edu

41. …, yes, yes, yes, yes, yes, … An accessible picture of what light is and how it interacts with matter 41 Copyright © 2015 Dan Dill dan@bu.edu

42. An accessible picture of what light is and how it interacts with matter 42 Copyright © 2015 Dan Dill dan@bu.edu

43. An accessible picture of what light is and how it interacts with matter Binyomin Abrams, Natalya Bassina, Dan Dill and Alex Golger 250th American Chemical Society National Meeting, Boston, MA Symposium on Active Learning in the Chemistry Classroom August 18, 2015 Dan Dill | dan@bu.edu | http://goo.gl/XtS287 An accessible picture of what light is and how it interacts with matter 43 Copyright © 2015 Dan Dill dan@bu.edu