CHEM101 Lecture Notes - Lecture 2: Electromagnetic Radiation, Classical Mechanics, Refraction
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Electrons are responsible for the reactions of atoms, this behaviour is due to the quantum theory. Many observations arise from spectroscopy which is the study of interaction of matter with electromagnetic radiation. The wave nature of light and the electromagnetic spectrum. Electromagnetic radiation is the transfer of energy in time and space in the shape of a wave. Visible light is a type of electromagnetic radiation and only occupies a small fraction of the spectrum. Wavelength (lambda, ) which is length of the one cycle, from peak to peak, measured in distance (m, cm, nm) Frequency (nu, ) which is the number of cycles per second or hz. Amplitude which is the height of the crest. Together the formula is = c c (the speed of light) = 3. 0 108 m/s. Classical mechanics considered energy and matter as two completely different things, they made sense in the world we live in.