Chapter 27In addition to powerpoint: 27.3 Quantum Particles: The Compton Effect- X-rays with high enough frequency, ionize everything- Longer wavelength=less energy- The Compton effect makes initial wave of energy scatter at various angles with longer wavelength- Different scattering angles=different wavelengths- Some energy goes through the material that is being hit with the x-ray and some is scattered, but all the energy is conserved27.4 The Bohr Theory of the Hydrogen Atom- Probability levels of where we find electrons is related to energy- The different wavelengths creates a spectrum- Spectrum is emitted in discrete amounts which is why there isn’t a blend of colors emitted- Higher to lower energy levels=spectral lines27.5 The laser- Pump energy into laser, pump electrons into metastable state, the higher up they are pushed then allows them to cascade back down when stimulated- Red laser helium/neon- Difference in energy levels in the wavelength of light seen - When hit with the correct photon it releases the energyChapter 2828.4 The Heisenberg Uncertainty Principle- It’s a one-or-the-other concept: if you want the positron, then the momentum is uncertain and vice versa- Can know the energy, but not the time as accurately, again its one or the other- When we go to the atomic scale, our ability to measure has a degree of uncertainty- Positron positive
View Full Document
Unlocking...