CH-1010 Chapter Notes - Chapter 3: Joseph Von Fraunhofer, Johann Jakob Balmer, Fraunhofer Lines
Document Summary
Classical physics predict: negatively charged electrons orbiting a positively charged nucleus lose energy and spiral into nucleus: opposites attract remember. Electromagnetic radiation: or radiant energy: form of light, to see the stability of atoms we need to study how atoms interact w/ this, ex. James clark maxwell theory: electromagnetic radiation moves through space as waves w/ 2 perpendicular components. An oscillating electric field and an oscillating magnetic field. Oscillate: move or swing back and forth at a regular speed. Wavelength ( ) : distance from one wave crest to the next: from left to right of spectrum: wavelengths get bigger, from right to left of spectrum: wavelengths get smaller. Frequency ( ): number of crests that pass a stationary point in space per second. Hertz (hz): equal to 1 wave per second. Speed of light (c): = c, the value of c: 2. 998 x 10^8. Joseph von fraunhofer: fraunhofer lines: set of dark lines in the otherwise continuous solar spectrum.