The document is about quantum theory and atomic structure. It discusses key topics like the wave-particle duality of light and matter, atomic spectra, Planck's quantum hypothesis, the photoelectric effect, Bohr's model of the hydrogen atom, electron orbitals and probability densities, and the Heisenberg uncertainty principle. Diagrams and examples are provided to illustrate these foundational concepts in quantum mechanics.

1. September 22, 2010

2. September 22, 2010
Quantum Theory and Atomic Structure
7.1 The Nature of Light
7.2 Atomic Spectra
7.3 The Wave-Particle Duality of Matter and Energy
7.4 The Quantum-Mechanical Model of the Atom

3. September 22, 2010
The Wave Nature
of Light
Frequency and
Wavelength

4. September 22, 2010

5. September 22, 2010
Amplitude (intensity) of a wave.

6. September 22, 2010
Regions of the electromagnetic spectrum.

7. September 22, 2010
Sample Problem 7-1
p.259

8. September 22, 2010
Different behaviors of
waves and particles.

9. September 22, 2010
The diffraction pattern caused by light
passing through two adjacent slits.

10. September 22, 2010
Blackbody radiation
E=nhn
DE = Dn h n
DE = h n
when n = 1

11. September 22, 2010
Demonstration of the
photoelectric effect.

12. September 22, 2010
Sample problem 7-2
p.263

13. September 22, 2010

14. September 22, 2010

15. September 22, 2010
The line spectra of
several elements.

16. September 22, 2010
Three series of spectral lines of atomic hydrogen.
for the visible series, n1 = 2 and n2 = 3, 4, 5, ...

17. September 22, 2010
Quantum staircase.

18. September 22, 2010
The Bohr explanation of three series of spectral lines.

19. September 22, 2010
A tabletop analogy for the H atom’s energy.
-18 1 1
DE = Efinal – Einitial = -2.18 x 10 J 2 2
n final n initial

20. September 22, 2010
Emission and absorption spectra of sodium atoms.
strontium 38Sr copper 29Cu

21. September 22, 2010

22. September 22, 2010

23. September 22, 2010
Wave motion in
restricted systems.

24. September 22, 2010
Sample problem 7-3
p.272

25. September 22, 2010

26. September 22, 2010
Sample problem 7-4
p.274

27. September 22, 2010
Comparing the diffraction patterns of x-rays and electrons.

28. September 22, 2010
CLASSICAL THEORY Summary of the major observations
Matter Energy and theories leading from classical
particulate, continuous, theory to quantum theory.
massive wavelike
Observation Theory

29. September 22, 2010
Observation Theory
Observation Theory

30. September 22, 2010
The Heisenberg Uncertainty Principle
Dx * m Du ≥

31. September 22, 2010
Sample problem 7-5
p.278

32. September 22, 2010

33. September 22, 2010
Electron probability density
in the ground-state H atom.

34. September 22, 2010

35. September 22, 2010

36. September 22, 2010
Follow up
problem 7-6
p.279

37. September 22, 2010
Follow up problem 7-7
p.279

38. September 22, 2010

39. September 22, 2010
The 2p orbitals.

40. September 22, 2010
The 3d orbitals.

41. September 22, 2010

42. September 22, 2010
One of the seven
possible 4f orbitals.

43. September 22, 2010
The energy levels in the H atom.

44. September 22, 2010
Isoelectronic Series