Electrons change orbits by radiating or absorbing photons.Electrons in stable orbits do not radiate.Orbital angular momentum is quantized hence only certain orbits are possible.Electrons follow circular orbits around a nucleus.Explanation of blackbody radiation and atomic spectra.Majority of the mass is found in the nucleus.Conclusions from the gold foil experiment.Electrons are distributed uniformly throughout the atom.He defines the different isotopes of hydrogen. He details Bohr’s postulates for the hydrogen atom and discusses how the Planck-Einstein relationship applies to electron transitions. Sadoway talks about the principles of modern chemistry and how that led to the understanding of the structure of the atom. Periodic Table and Table of Constants Lecture Summary Line spectra the Bohr model uses of emission and absorption spectra 6.3, “Atomic Spectra and Models of the Atom.” 6.2, “The Quantization of Energy.”īlackbody radiation the photoelectric effect The electron radioactivity the atomic model Understand Bohr’s quantization condition.Īrchived Lecture Notes #1 (PDF), Sections 1-3.Understand Rutherford’s “nuclear” model.Understand Thomson’s “plum pudding” model.Learning ObjectivesĪfter completing this session, you should be able to: Sadoway discusses the atomic spectra of hydrogen ( Session 4). Lanthanum (La), magnesium (Mg), chlorine (Cl), titanium (Ti), helium (He), hydrogen (H)īefore starting this session, you should be familiar with:
Thomson, proton, electrical charge, amber, alpha particle, beta particle, ionization, conservation of mass, Johannes Geiger, Ernest Marsden, coulomb, Niels Bohr, Bohr model of hydrogen, energy quantization, orbital angular momentum, Planck-Einstein relationship, joule, Newtonian force, Coulombic force, Max Planck, photon, energy, frequency, Planck’s constant, isotope, Henry Cavendish, Harold Urey, Ernest Rutherford, blackbody radiation Lanthanides, actinides, electron, mass, J. Thomson’s plum pudding model, Rutherford’s model of the nucleus, Bohr’s model of the hydrogen atom, Rutherford-Geiger-Marsden experiment, Planck-Einstein relationship, isotopes of hydrogen
0 kommentar(er)
