Wednesday, November 9, 2011
Wednes-Day 1
AP Chem - we calculated the energy if a photon emitted for a given electron transition (n=7 to n=4) in Hydrogen, and then did the same for a Li 2+ ion; we noted that, due to the greater number of protons in a nucleus of Li 2+, the attraction of an electron to the Li2+ nucleus is greater than that of an electron towards a one proton H nucleus, thus all corresponding electron energy levels in Li 2+ are lower in potential energy AND there are different DIFFERENCES in energy between any two corresponding energy levels.
We then moved onto DeBroglie's outlandish speculation that matter could have a wave nature; we went through the derivation of the theoretical wavelength associated with a moving object. We saw that solely objects of extremely small mass (on the order of that of a proton or electron) have measureable/detectable wavelengths.
We then saw evidence of the wave nature of the electron, as discovered by G.N. Thomson, the son of the man who discovered the electron as a particle, JJ Thomson!
This wave nature discovery effectively showed a further inadequacy of the Bohr atomic model; advances in mathematics and physics led to the Quantum Model of the atom; the equations for the possible energies (energy SUBLEVELS) of an electron in any atom were developed and solved by Schroedinger.
Bio - we went , step by step, through two examples of transcription and translation, showing part of a gene/allele on a chromosome in the nucleus that ultimately led to the synthesis of the protein that it coded for, at the ribosome.
We then moved onto DeBroglie's outlandish speculation that matter could have a wave nature; we went through the derivation of the theoretical wavelength associated with a moving object. We saw that solely objects of extremely small mass (on the order of that of a proton or electron) have measureable/detectable wavelengths.
We then saw evidence of the wave nature of the electron, as discovered by G.N. Thomson, the son of the man who discovered the electron as a particle, JJ Thomson!
This wave nature discovery effectively showed a further inadequacy of the Bohr atomic model; advances in mathematics and physics led to the Quantum Model of the atom; the equations for the possible energies (energy SUBLEVELS) of an electron in any atom were developed and solved by Schroedinger.
Bio - we went , step by step, through two examples of transcription and translation, showing part of a gene/allele on a chromosome in the nucleus that ultimately led to the synthesis of the protein that it coded for, at the ribosome.
# posted by C @ 11:39 PM 
