CH 110 Lecture Notes - Lecture 7: Niels Bohr, Black-Body Radiation, Electromagnetic Radiation
Document Summary
Chapter 6 part 1: electronic structure of atoms. Much of our present understanding of the electronic structure has come from the analysis of light. The light we see with our eyes is known as visible light, it is one type off electromagnetic radiation. Electromagnetic radiation is also known as radiant energy because it carries energy through space. Ex. radio, microwave, infrared, visible, ultraviolet, x-ray, gamma ray. They all move through vacuum at the peak of 2. 998*e8 m/s. Amplitude- is the height of a crest or the depth of a trough. Wavelength- is the distance between two consecutive crests, most often measured in nanometers (1*e-9 m) Frequency- is the number of wave cycles (successive crest or troughs) that pass a given point in unit time. The frequency unit is the hertz (hz) represents once cycle per second. Visible light only makes up a tiny portion of the entire spectrum, covering only the narrow wavelengths (400-700nm)