11 ElectronConfigurations

11 ElectronConfigurations - Room Assignments for Exam 1...

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1 1 Solar ID Room 000000000 – 107101712 Javits 100 main floor 107101713 – 107279101 Javits 102 107279102 – 999999999 Javits 100 balcony Room Assignments for Exam 1 Tuesday, September 29 th , 8:30 – 10:00 PM 2 Summary: What we learned last time! Electrons have wave-like properties. Electrons therefore are described by mathematical functions that look like waves. Waves have an amplitude that oscillates in space and time. Examples of waves sine and cosine functions spherical harmonics angular part associated Laguerre polynomials radial part
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2 3 The wave function for an electron encodes the energy, the angular momentum, and the position of the electron. is called an atomic orbital or a molecular orbital. The square of the amplitude of the wave function Ψ 2 (r, θ , φ ) gives the probability density of finding the electron at a point in space. r 2 Ψ 2 (r) gives the radial probability density, which is the probability of finding the electron at a distance r from the nucleus 4 Wave functions for electrons in atoms are identified by 3 numbers. Called quantum numbers because they are associated with quantized energy and angular momentum. Quantized means only certain values are possible.
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3 5 n principle quantum number Electron shell l azimuthal or angular momentum quantum number (the letter el) Energy, angular momentum, & shape of the orbital Electron subshell m l magnetic quantum number Direction of the angular momentum
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11 ElectronConfigurations - Room Assignments for Exam 1...

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