CHEM 1040 Lecture Notes - Lecture 4: Gas-Filled Tube

• School: University of Guelph
• Department: Chemistry
• Course: CHEM 1040
• Professor: Richard Delaat

Document Summary

7. 2 the bohr theory of the hydrogen atom. Bohr applied a new theory to the simplest atom, hydrogen. With a clear prism we can spread out the light from a bulb to give a continuous spectrum which contains light of all wavelengths (looks like a rainbow) Light emiited from a heated gas yields a different result known as the line spectrum a spectrum showing only certain colors or specific wavelengths of light. For e(cid:454)a(cid:373)ple (cid:449)he(cid:374) the light fro(cid:373) h(cid:455)droge(cid:374) gas dis(cid:272)harge tu(cid:271)e is separated i(cid:374)to it"s components by a pris(cid:373), ti gi(cid:448)es a spe(cid:272)tru(cid:373) of li(cid:374)es, (cid:449)here ea(cid:272)h li(cid:374)e (cid:272)orrespo(cid:374)ds to it"s wavelengths. Bohr set down the following postulate to account for (1) the stability of the hydrogen atom and (2) the line spectrum of the atom. An electron can have only specific energy values in an atom, which are called its energy levels.