CHEM 102 Lecture Notes - Lecture 3: Bohr Model, Dimensional Analysis, Electromagnetic Spectrum
3 Sep 2015
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Chem102 - lecture 3 - electromagnetic radiation and bohr model of the atom. Dimensional analysis must be used to convert units in chemistry. Unit factors are utilized in this process and are made with any two equivalent factors. Defined as the emission and absorption of energy in the form of electromagnetic waves. This type of energy has wavelength, frequency and speed. Defined as a continuous band of visible and invisible light that ranges in wavelength. Wavelength (lambda symbol): distance between two peaks or troughs in the wave. Number of wavelengths per second that travel past a given point. Amplitude: vertical distance from the midline of a wave to the peak or trough. The product of frequency and wavelength always equals a constant, c = 2. 998 x 10^8 m/s, the speed of light. In nanometers, c = 2. 998 x 10^17 nm/s. Frequency and wavelength have an inverse relationship.
