CHM 2041 Study Guide - Quiz Guide: Radial Distribution Function, Electromagnetic Spectrum, Quantum Mechanics
Document Summary
Quantum mechanics forms the foundation of chemistry. The quantum mechanical model explains the manner in which electrons exist and behave in atoms. All em waves move through a vacuum at the same, constant speed. Measure of light intensity (larger amplitude means brighter light) Center line to crest / node to trough. Wavelength: measure of distance covered by the wave ( ) Distance from one crest/trough to the next. Frequency: number of cycles (wave crests) that pass through a stationary point in a given period of time (v) Note: the symbol is not a v but nu, the greek letter (slanted v) Units of v: hertz (hz)- 1 cycle. Directly proportional to speed which wave is traveling. Node: point where wave function, probability density, and radial distribution function all pass through 0. Substances absorb some colors and reflect other (our eyes see the reflected colors)
