CHM120H5 Lecture Notes - Lecture 5: Atomic Orbital, Standing Wave
Document Summary
Assignments (for marks) will be posted when the topics have been covered. Practice problems can be handed in for extra marks. Photons (light): by combining planck"s and einstein"s equations on energy, Electrons: by combining the standing wave equation with bohr"s equation, is called de broglie"s wavelength. Every particle that is moving is in a wave and has a wavelength, called de. Sought to expand the wave-particle duality to all particles. Example problem: consider an electron moving ~1. 0x106 m/s, 1% of the speed of light. Since the wavelength of the electron is comparable to atomic dimensions, the effects of its wave nature are very important when considered on that scale. , the larger mass causes the wavelength to be. Ex: a car weighing 1000 kg travelling at 100 km/hr has a wavelength of: Heisenberg"s uncertainty principle: it is not possible to know the position and the momentum of a moving particle accurately at the same time.
