CHEM 1031 Lecture Notes - Lecture 24: Bohr Model, Diffraction, Atomic Spectroscopy
9 Nov 2016
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Nuclear theory: nucleus has protons and neutrons surrounded by electrons, electrons do not behave according to the same rules. Small particles like electrons can simultaneously be on two different sites. Light: has wave particle duality and has properties of waves and of particles, type of energy: electromagnetic radiation, wavelength: distance of lecyck of wave crest to crest. Measured in units of length: electron field: Has forces that affect charged particles: magnetic field: Has forces that affect magnetic particles: lambda and amplitude: Related to the amount of energy light has: lambda: Long wavelengths have less energy: amplitude: Short amplitudes have dimmer light compared to tall amplitudes: frequency: The number of times a wave cycle (crest) comes through a given point. Constructive interference: when the crests and troughs line up. Destructive interference: the waves cancel each other out: gets dimmer or goes out. 1900s they thought light was only waves and unit. Photoelectric effect: held in the atoms electrostatic metal forces.
