Chapter 5: Electrons In Atoms A. Models of the atom i. The Development of Atomic Models Protons and neutrons make up a nucleus surrounded by electrons Rutherford’s model or theory ( figured electrons move around the nucleus) His theory didn’t explain why metals or compounds of medals give off characteristics of colors when heated. Also didn’t explain why the atomic model could not explain the chemical properties of elements ii. The Bhor Model Bohr proposed that an electron is found in specific
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Review Questions pgs. 124-125‚ #1-23 (odd) 1. b 3. c 5. Wien’s law explains that objects of different temperatures emit spectra that peak at different wavelengths. Hotter objects emit shorter wavelengths‚ thus appearing bluer‚ whilst colder objects emit longer wavelengths‚ appearing redder. A star’s surface temperature can be deciphered using this method by seeing its color and surmising the amount of heat it’s giving off. 7. Wien’s law states that the peak of the emission spectrum
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Light Emission and Absorption - Active Reading When atoms absorb energy‚ electrons can jump to higher energy orbitals. When the electrons move back to their original configurations‚ that energy is given off as light! Travel to the website linked below and take Cornell notes for each section. Write some big ideas in the left column and supporting details in the right column. Make sure to answer any questions given as well. Make sure you play and watch every animation and click every link
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Physics E=mc2 The film starts out by describing how the equation E=mc² came about explaining each variable and the scientist’s whose ideas helped develop E=mc². In the movie E as in energy was explained first. Before energy’s discovery people thought that it was a composition of random forces acting upon someone or something that created movement. Michael Faraday went from being a blacksmith and became a scientist after being inspired after attending a speech from his idol Sir Humphrey Davy
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Flame Test Lab Introduction/Purpose: When a certain amount of energy is supplied within an atom‚ the electrons of that atom begin to move up the levels of electron configuration. This level of energy is called a quantum. The object of this experiment was to examine the movement of electrons up and down energy levels through the use of given elemental substances. With heat supplying a large amount of energy‚ the properties of the elements caused them to give off a certain color or tone of
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Implementation of a Chirped Pulse Fourier Transform Microwave (CP-FTMW) Spectrometer Abstract: Under the condition in which electric and magnetic fields are absent‚ rotational constants is a three molecular constants that substantiate polyatomic molecule. In this laboratory experiment at Missouri University of Science and Technology‚ we are going to collect rotational spectra by using 2 separate types of microwave spectrometers -- the FTMW (Fourier Transform Microwave) spectrometer and CP-FTMW
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Review for First Quarter Exam AP CHEMISTRY List of topics – Chapters: review‚ 1‚ 2‚ 3.1 and 3.2 1. Scientific Method 2. Significant Figures 3. Calculation with significant figures 4. Uncertainty 5. Density problems 6. Density Graphs interpretation 7. Dimensional Analysis 8. States of Matter 9. Classification of matter 10. Separation techniques 11. Structure of the atom a. historical development: Democritus; Aristotle; Dalton (postulates‚ law of definite proportions‚ law of multiple
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Hestia Livana Partners : Rachel Gideon‚ Joy Boake‚ Hannah Harper Various Color of Light as the Effect of Electron Emission Objective Observe the characteristic colors produced by certain metallic ions when vaporized in a flame. Identify the unknown metallic ions by means of its flame tests. Background When atoms absorb energy‚ electrons move into higher energy levels‚ and these electrons lose energy by emitting light when they return to lower energy levels. Energy levels are fixed energies
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International Journal of Medical and Biological Sciences 6 2012 Estimation of Electromagnetic Radiation from Base Station Antenna R. K. Singh Abstract—In the present paper‚ an observation of electromagnetic radiation from base station antennas installed for various communication purposes has been done on the basis of equivalent isotropically radiated power (EIRP) calculations. For this purpose‚ a typical wireless communication site has been selected where GSM‚ CDMA‚ 3G/UMTS and WiMAX antennas are
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\documentstyle[preprint‚prc‚aps‚floats‚epsf]{revtex} \begin{document} \title{Nonuniversal Effects in the Homogeneous Bose Gas} \author{Shawn Hermans} \address{Saint John’s University‚ Collegeville‚ MN 56321} %Professor Eric Braaten\thanks{{\tt The Ohio State University}} %Professor Thomas Kirkman\thanks{{\tt Saint John’s University}} \author{Advisor: Professor Eric Braaten} \address{The Ohio State University‚ Columbus‚ OH 43210} \maketitle \begin{abstract} In
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