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Modern Models of the Atom Modern Models of the Atom Experiments show that light must be waves! Other experiments show that light consists of particles!

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Modern Theory of the Atom: Quantum Mechanical Model Frequencies in Chemistry Electron Configuration & PT Principle Energy Levels Sublevels Orbitals hold 2 electrons ...

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... De Broglie Slide 6 Slide 7 Slide 8 2 kinds of waves Traveling Wave #1 Guitar string DeBroglie Electron-Wave Modern Theory Bohr Model vs. Modern ...

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Aristotle and Plato favored the earth, fire, air and water approach to the nature of matter. ... because the atoms of the gas were uncharged.

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The Atomic Model Chem 9 The Greek Model Democritus - A Greek Philosopher, 400 BC. Concluded that matter could not be divided into smaller and smaller pieces forever.

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Models of the Atom Rutherford, Bohr, De Broglie and Quantum Physics

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Modern Theory of the Atom Quantum Mechanical Model Or Wave Mechanical Model Or Schrodinger s Model Prin.En.Lev Sublevels # orbitals/sl Total # elec 1 s 1 2 2 s 1 2 ...

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Modern Theory of the Atom Quantum Mechanical Model Or Wave Mechanical Model Or Schrodinger s Model Naming sublevels Sublevels are usually labeled s, p, d, or f ...

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Grade 9 Science Chemistry Elements vs. Compounds An element is a pure substance made up of one type of particle, or atom. Each element has its own distinct properties ...

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Bohr Model of the Atom Why are the emission spectra of elements not a continuous spectrum? In 1913, a Danish physicist named Niels Bohr tried to discover the answer ...

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Modern Theories of the Atom Discovery of the Electron through the Neutron

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Title: Models of the Atom Section 13.1 Author: System User Last modified by: System User Created Date: 10/8/2004 4:19:20 PM Document presentation format

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Development of the Atomic Model 400 B.C. Democritus He thought atoms were un-cuttable Also atoms are hard small particles 1808-Dalton He believed that all ...

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Atomic models Subatomic particles Atomic structure Change in atomic structure http://www.pdsm.wpafb.af.mil/toprac/atoms_full_std.gif Recap Changing Particles ...

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Chapter 5 Models of the Atom

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Ch. 5 - Electrons in Atoms III. Quantum Model of the Atom A. Electrons as Waves Louis de Broglie (1924) Applied wave-particle theory to e- e- exhibit wave properties ...

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The Quantum Model of the Atom Mrs. Johnson de Broglie Light behaves as both a wave and a particle So do e ( they are particles, but also have wave like properties ...

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Atoms: Development of the Atomic Theory Democritus 460 BC - Greek philosopher proposes the existence of the atom He pounded materials until he made them into smaller ...

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Atomic Theory and Atomic Structure What are Neutrons? Large and heavy like protons Neutrons have no electrical charge Located in the nucleus of the atom 1 neutron= 1 ...

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December 13 The wave-mechanical model of the atom Homework Finish worksheet Review book questions

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Implies wave-particle duality at root of atomic structure. Limitations of Bohr Theory ... Based on 'Wave functions,' probability and Schrodinger equation ...

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Bohr's planetary model of atom ... 5.6 Energy-level diagrams describe how orbitals are occupied ... Oxygen (8): 1s22s22p4 ...

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Unit EQ: Atomic History? EQ: What is the atom made of? Warm-up 1) What type of element is Silicon, Zinc, Phosphorus, Barium? 2) How many protons, neutrons and ...

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Journey into the Unseen Aristotle (384-322 BC) Greek philosopher Hypothesized that all things in nature are composed of four elements Fire, Air, Earth, Water ...

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Also called an electron density map for a given orbital. 9. Orbitals ... 90% of the time the electron is within the boundaries described by the electron density map ...

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Ben Herbin. Willi Guy. Wave Mechanical Model of the Atom ... The model followed Bohr's model where atom were shown and had a definite path. ...

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Quantum Mechanical Model of the Atom * Many scientists contributed to the development of the quantum mechanical model of the atom. Bohr Planck DeBroglie Heisenberg ...

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Atoms of one element can combine with atoms of other elements to form ... caused beryllium to emit rays that could pass through lead but not be deflected, ...

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Made a piece of equipment called a cathode ray tube. ... Cathode Ray ... Charge of the electron = 1.6 x 10-19 C. Later determined mass of proton ...

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Reason for Nuclear Shells Type of particles Fermions Fermions Indentity of particles ... felt by the electron is the Coulomb potential Nuclear ...

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The Development of a New Atomic Model. Chapter 4 Section 1 New Atomic Model ... a form of energy that exhibits wavelike behavior as it travels through space. ...

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Model doesn't explain how the negative electron can stay ... Light travels in waves, similar to waves caused by a moving boat or a ... glow yellow glow ...

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n = 1, 2, 3... etc., indicating the number of sublevels it has. Each energy sublevel corresponds to an orbital with a specific shape (where the ...

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He suggested an atomic model in which electrons were embedded in spread positive ... from a hot source passes through a cool gas before entering the spectroscope. ...

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... state are heated they increase in PE then return to original state as they emit light. As they are heated the electrons leave the ground state and become excited. ...

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New Approach to the Atom (Ch. 5) Electromagnetic Spectrum. Line spectra. Wave vs. Particle. Bohr Model. Heisenberg. Schrodinger. Quantum Mechanical Model

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Title: The Structure of the Atom Author: Dan Martin Last modified by: leeperlr Created Date: 9/1/2003 3:36:13 PM Document presentation format: On-screen Show (4:3)

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Number of Protons Atomic Number Orbital Modern Model Region of space that holds 2 electrons. Has a specific energy. Shapes vary. E1 E2 Represents an electron dropping ...

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ATOM Oleh : Noviyanto ST. Dosen Kimia Dasar I Untuk Program Studi Matematika STKIP PGRISumenep ATOM DAN LAMBANG ATOM BAGIAN ATOM Atom terdiri dari tiga bagian yaitu ...

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Atomic Physics Quantization of Energy Atomic Models Quantum Mechanics Matter Waves Frequency of matter waves can be found with Planck s equation Evidence for Matter ...

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Atoms What are we going to study about the atom? History Structure Properties Forces ...

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Title: PowerPoint Presentation Author: Margaret Loh Last modified by: WCSD Created Date: 1/1/1601 12:00:00 AM Document presentation format: On-screen Show (4:3)

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Unit 2: Atomic Theory

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History of the Atom Scientists and Their Contribution to the Model of an Atom Democritus proposes the 1st atomic theory 460 370 BC History of the Atom - Timeline ...

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ATOMIC STRUCTURE? Kenneth E. Schnobrich

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Unit 02 Atomic Structure

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Ch. 5: Electrons in Atoms 5.1 Models of Atoms timeline, Bohr, Schrodinger, atomic orbitals 5.2 Electron Arrangement in Atoms electron configurations

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The Atom Dr. M. Hazlett Mandeville High School Louis de Broglie He figured out the wave-particle duality of the e- Established the wave function of e- ( ) When ...

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Atomic Structure Ms. Titolo Chemistry 112

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History of the Atom Scientists and Their Contribution to the Model of an Atom Democritus (460 BC 370 BC) Proposed an Atomic Theory (along with his mentor ...

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Atomic Theory History of the Discoveries Related to the Atom Mr. Kendall

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Evidence for the Quantum Theory Photoelectric Effect : ... of the light was the most important characteristic of the light producing the effect. http://phet.colorado ...

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Chapter 4 Arrangement of Electrons in Atoms Section 4-2 Quantum Mechanical Model of the Atom Totally different approach. Emphasizes the wave properties of an electron.

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Arrangement of Electrons in Atoms Development of a New Atomic Model Wave Description Of Light Electromagnetic Radiation: form of energy that exhibits wavelike ...

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Electrons in Atoms

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... discreet or quantised These quantum levels are now known as number states 4 3 2 1 0 energy 4hf 3hf 2hf 1hf 0 energy n Photoelectric ... Principle The Uncertainty ...

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