PPT-7.1-7.3 The Nature of Light – Atomic Spectroscopy and the Bohr Model

The Nature of Light The quantummechanical model aka the electron cloud model An atomic model that explains the strange behavior of electrons Electrons determine the chemical and physical properties of elements. John Stachel. Center for Einstein Studies, Boston University. HQ-3, MPIWG, Berlin June 29,2020. The Young Niels Bohr. The Mature Niels Bohr. The Quantum of Action. "Anyone who is not dizzy after his first acquaintance with the quantum of action has not understood a word." . Lab no. 6. In . analytical chemistry. , . Atomic absorption spectroscopy. (AAS). . is a technique for determining the concentration of a particular metal . element. . (e.g. Fe, Cu, Al, Pb, Ca, Zn). Bohr Model diagrams are used to represent the electron structures of elements. Protons and neutrons are placed in the middle to represent the nucleus. Electrons are placed in the electron shells. Making a Bohr Model. Chemistry. Learning Goals . To be able to . explain and draw atomic structure. Elements. Elements are the . building blocks. of all . matter. on Earth. Elements are made up of . atoms. Differences in . A science story. Darin J. . Ulness. Department of Chemistry. Concordia College, Moorhead, MN. Spectroscopy. Using . light. to gain information about . matter. Spectra. Transition frequencies. Time dynamics. C. l. ). Draw the Bohr model. Draw the orbital Diagram. Write the longhand notation. Write the shorthand notation. Bellringer. Bellringer. Bohr Model. Longhand. 1s. 2. 2s. 2. 2p. 6. 3s. 2. 3p. 5. Contents:. Problems in nucleus land. Spectral lines and Rydberg’s formula. Photon wavelengths from transition energies. Electron in a box. Schr. ö. dinger. Limitations of Bohr’s model. .  .                               . Review for Quiz. Match the Atomic Model to the Person who designed the model.. Use the Models Above . Niels. Bohr. John Dalton. Ernst Rutherford. J.J. Thomson. Niels. Bohr - D. John Dalton - A. Ernst Rutherford - C. Mrs. Medina. 1. Why do metals glow when heated?. 2. Models of the Atom. A model should explain not just what the material is made of (composition) but also how it is going to behave (changes).. Rutheford’s. Piet Van Duppen. ISOLDE CERN, Switzerland. IKS-. K.U.Leuven. , Belgium. K.U. Leuven. University of Western Scotland, U.K. - . K.U.Leuven. , Belgium - SCK-CEN-Mol, Belgium - . U.Gent. , Belgium - . Commenius. Kelebihan. . Niels. Bohr. Kekurangan. . Niels. Bohr. KELUAR. Gambar. . Niels. Bohr . dan. Model Atom . Niels. Bohr. . Teori. Atom . Niels. Bohr. Kelompok. 3 :. Wahyu. . Trifandi. . Octa. Chapter 5. Sub Topics. Introduction to Atomic Spectroscopy. Atomic . Absorption Spectroscopy AAS. Atomic . Emission . Spectroscopy. AES. Interferences and Comparisons. Atomic Absorption and Emission Spectroscopy. 2. Nuclear Magnetic Resonance Spectroscopy. After hydrogen, the most useful atom providing information is carbon-13.. The . overall intensity of a . 13. C signal is about 6400 . times . less than the intensity of an . Quiz. Stability of atoms. Ultraviolet catastrophe. Bohr Model . bootcamp. PHYS274 Midterm I and related announcements. Midterm I on . Oct 16. th. , Monday. Professor . Pui. Lam will substitute for me, Oct 6-18, while I am away at KEK.