chem notes 11-2 - November 2, 2007 Dr. Stevens Gen. Chem. 1...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: November 2, 2007 Dr. Stevens Gen. Chem. 1 Bohrs Model:-theory: 1. electrons have only specific quantized E values 2. light is emitted as electrons move from upper E levels to lower E levels-E(n) = -R(h) x (1/h^2)-n = shell #-R(h) = rydberg constant (for H) = 2.18x10^-18J-change in E = E(final)-E(initial)-emission change in E < 0-ex: n=3 n=2-absorption change in E > 0-ex: n=3 n=4-calc. wavelength of light emitted if an electron in H moves from n=5 n=3.-change in E = E(3)-E(5)-E(3) = -2.18x10^-18x1/9 = -2.42x10^-19-E(5) = -2.18x10^-18x1/25 = -8.72x10-20-2.42x10^-19 -8.72x10-20 = -1.55x10^-19-wavelength = hc/E = 6.626x10^-34(2.9979x10^8)/-1.55x10^-19 = 1.28x10^-6m-infrared Quantization:-for light/energy-1 unit/1 quantum = 1 photon-why? b/c of waves and circular orbitals-circular wave-same multiples as linear waves-linear wave-sound waves/etc-only multiples of wavelength can fit on the string-dual nature electrons and light-both particles and waves-mass...
View Full Document

Page1 / 2

chem notes 11-2 - November 2, 2007 Dr. Stevens Gen. Chem. 1...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online