CHE 105 Lecture 7: Chapter 7

• School: University of Kentucky
• Department: Chemistry
• Course: CHE 105
• Professor: Josh Owen

Document Summary

To understand chemistry, we need to explain the behavior of: the quantum-mechanical model explains. Wave a vibrating disturbance by which energy is transmitted. Wave length (upside down y)(lamda) difference between 2 successive wave peaks. Amplitude height from the midline to the peak: adding more energy or more particles. Frequency (v) - the number of waves that pass through a particular point in a second (hz = 1 cycle)(hertz) Maxwell (1873: proposed that visible light consists of electromagnetic waves, speed of light in vacuum = 3 x 108 m/s, electromagnetic radiation (wavelength) * (frequency) = c. The color of light is determined by wave length or frequency. Brightness of a color is related to its amplitude (height of a wave) Radio waves are the weakest for of electromagnetic light. Ultraviolet, x-ray (lead lining) and gamma rays more dangerous forms of electromagnetic light. Ionizing radiation (wavelength) * (frequency) = c = Systems can have any amount of energy.