1. How many wavelengths are represented in each figure below?
Waves: A Warm up

2. The Electromagnetic Spectrum

3. The Periodic Table 1s 2s 2p 3s 3p 4s 3d 4p 5s 4d 5p 6s 5d 6p 7s 6d 7p4f 5f

4. The Quantum Model Part II
Energy as wave and particle

5. De Broglie Small matter (electrons) have wavelike properties as well.
Any moving particle has a wavelength
Changed the Bohr model so that all elements could be explained according to their frequencies of energy.

6. De Broglie
Essentially the model went from
de Broglie
Bohr to

7. Schrodinger (and his cat)
A thought experiment
Simultaneous existence

8. Heisenberg Uncertainty Principle
An electron’s location and speed cannot be determined at the same time.
If we cause change to find one variable, we are no longer looking at the actual e- situation.
So quantum mechanics can tell us the probability that an electron is somewhere, but it does not tell us how it got there.