CHM_101_Exam_3_review session outline

CHM_101_Exam_3_review session outline - CHM 101 Exam 3...

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CHM 101 – Exam 3 Review Chapters 7 and 8 Chapter 7 – Electromagnetic Radiation Electromagnetic radiation is light!! - All light moves at a speed of 3.0 x 10 8 m/s – no matter what color it is - c = νλ (as ν increases, λ decreases and vice versa) - E Photon = hν (Energy and frequency are directly related) Electromagnetic Spectrum shows the different types of electromagnetic radiation - The visible region is between 700 and 400 nm – ROY G. BIV - UV around 10 2 nm and Infrared is around 10 4 nm A continuous spectrum results when white light is shown through a prism A line spectrum results when colored light is passed through a prism Bohr Model of the atom - Electron orbits the nucleus at specific distances (n = 1- 6) - Transition from lower n to higher n - requires energy - Transition from higher n to lower n - releases energy (as light) - ∆E = E Final – E Initial - Hydrogen line spectrum shows four lines – why? The Modern Model of the Atom Electrons are found in orbitals – not orbits - An orbital is a three-dimensional region where the electron is most likely to be found - Orbitals come in different sizes and shapes
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This note was uploaded on 04/03/2008 for the course CHM 101 taught by Professor Scruggs during the Fall '07 term at ASU.

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CHM_101_Exam_3_review session outline - CHM 101 Exam 3...

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