CHEM 001A Lecture 19: Lecture 19 CHEM 001A

45 views6 pages
16 Dec 2017
Department
Course
Professor

Document Summary

The speed of any wave is the product of its wavelength ( ) and frequency ( v ) The energy of a photon is given by. C = v = 2. 998 x 10 8 m/s (the speed of light) Where h = 6. 626 x 10 -34 j*s (planck"s constant) The energy for the n th electronic state of a one-electron system where r e is the rydberg energy and z is the nuclear charge. hc. R e = hcr = 2. 180 x 10 -18 j. Louis de broglie asked a question: if light has properties of both waves and. Highly unintuitive: macroscopic objects have well-defined positions and particles, why doesn"t all matter also have wave-like properties? momenta, whereas waves can do things like constructively and destructively interfere. Prediction : like light, all matter has both particle and wave properties, such that the wavelength of a particle is given by: