CHEM 110 Chapter Notes - Chapter 6: Black-Body Radiation, Absorption Spectroscopy, Atomic Orbital

• School: McGill University
• Department: Chemistry
• Course: CHEM 110
• Professor: Laura Pavelka

Document Summary

Distinction between energy and matter: refraction: change in speed as wave passes from one medium to another (wave, dispersion: white light separates into its component colours, diffraction: wave bends around the edges of an object (wave) Interference: when light waves pass through adjacent slits, nearby emerging circular waves interact. Atomic spectra: line spectra: light from gas atoms pass through slits and refracted by prism, absorption spectra: atom absorbs photons and become excited/move up. Light passed through cold gas (black lines: emission spectra: atom in excited state emits photons and move down. Hot gas emits energy (bright lines: continuous spectra: heated solid produces blackbody radiation, not continuous since atom"s energy isn"t, has only certain states, rydberg equation: modified the balmer series. *+energy going up, - going down levels: e = 2. 18x106j. 9: einsten: matter and energy are alterable forms of the same entity e=mc2, de broglie: electrons have wavelike motion in orbits or fixed radii (only certain f and e)