emission spectra

emission spectra - Transcript

Emission Spectra

long

short

Electromagnetic Spectrum

short

long

Bright Line Spectra

Spectra of several elements

Absorption
Dark hydrogen absorption lines appear against a continuous visual spectrum the light in the spectrum absorbed by intervening hydrogen atoms

From Astronomy A Brief Edition J B Kaler Addison Wesley 1997

Colors of various gases

Argon

Helium
580

Hydrogen
420 650

Krypton

Neon
460 735

Xenon

Water Vapor

Using log scale

Water Vapor

Using log scale

University of Oregon
http jersey uoregon edu vlab elements Elements html
Applet of Periodic Table with spectrum of each element

Internet Resources
Ohio State University http www astronomy ohiostate edu pogge Ast350 Labs Lamps index html

Ben Zalewski Jan 2007