CHE 201 Chapter Notes - Chapter 6: Electromagnetic Spectrum, Black-Body Radiation, Ultraviolet
Document Summary
Light we can detect with our own eyes: part of the electromagnetic spectrum. Electromagnetic spectrum: transmission of energy in the form of waves. If a wave has a high frequency, then it has a low wavelength, and a high energy. All with different &: radio waves- mris and radios, microwave radiation- cell phones. Quantization of energy (planck: blackbody radiation, the electromagnetic radiation emitted from a heated solid, quantum, the smallest quantity of energy that can be emitted or absorbed in the form of electromagnetic radiation. Plank came up with it: energy (e, quantized rather the continuous, quantized: the eggs laid by hens are quanta (hens lay only whole eggs). Integer: e = h , h: plan(cid:272)k"s (cid:272)onstant (6. 63 (cid:454) (cid:1005)(cid:1004)-34 j x s, quantum theory, energy is always emitted in whole number multiples of hv. Emission spectrum: the light emitted, either as a continuum or discrete lines, by a substance in an excited electronic state.
