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Unformatted text preview: -Plum pudding model Modeling the energies-For any given electronic transition Hv = deltaE = E2 – E1 (energy of final state – energy of initial state)-Balmer Series n2 = 2 DeltaE = -2.178 x 10^-18 Rydberg equation in a hydrogen atom Z = 1 1 / lambda = E / hc = R (1/n2^2 – 1/n1^2) Quantum Mechanics-Emission and absorption spectra of gas phase atoms provide convincing evidence that the allowed energies in an atom are quantized-Yet Bohr’s model is inadequate-good results for H only-charged particles orbiting an oppositely charged particle (size weight and energy were looking at) would collapse Standing Waves-1-D standing waves-string instruments, jump ropes-2-D and 3-D standing waves Aufbau Principle “Building up principle” The orbitals of lower energy are filled in with the electrons 1 st and only then the orbitals of high energy are filled 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, 5p, 6s, 4f, 5d, 6p, 5f, 6d, 5g, 6f, 6g, 6h...
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This note was uploaded on 11/18/2010 for the course CH 301 taught by Professor Fakhreddine/lyon during the Spring '07 term at University of Texas.
- Spring '07