Atomic Models

Nov 22, 2012

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Atoms. Chemical Symbol- One capital letter or one capital letter plus one or two small letters Carbon: C, Argon: Ar, Oxygen: O, all on the periodic table!Atom- smallest piece of matter that has the properties of the element- represented by chemical symbol Composed on protons, neutrons, and elect

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Atomic Models

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Atomic Models

Atomic Models. Bohr Model Cloud Model. Bohr Model. Electrons orbit the nucleus in definite orbits. The orbits can hold only a specific number of electrons. Once a level is full, the electrons start filling the next level. Electron Level Limits:. 1st Level = 2 electrons

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Atomic Structure Models

Atomic Structure Models. Dalton’s Atomic Model. Solid sphere Evidence: Conservation of matter Law of definite composition Law of multiple proportions. Thomson Plum Pudding. Based on the discovery of the electron Evidence Cathode Ray Experiment

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Atomic Models

Atomic Models. Timeline in Science. Empedocle (420 B.C). The word Atom was introduced by Leucippe and it means Indivisible Qualities Indivisible due to size Solid (no void) Perfect therefore eternal Surrounded by empty space Infinite number of shapes. Earth. Water. Air. Fire.

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Atomic Models

Atomic Models. The Greeks. Ancient Greeks – Naturalism, a physical explanation for phenomenon. Democritus – In 450 BC proposed atoms, particles that could not be further divided. Aristotle – Earth, Air, Water, Fire. Aristotle, just remember … Earth, Wind, and Fire (& Water).

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Atomic Models

Atomic Models. fire. Democritus. earth. air. water. Aristotle. Early Greek Theories. 350 B.C - Aristotle Theory that matter was made of four “elements”: earth, fire, water, air. 400 B.C. - Democritus thought matter could not be divided indefinitely.

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Atomic Models

Atomic Models . Atomic Theories. Atomic Theory – A Short History Fifth Century, BCE Democritus Believed matter was composed of very small, individual particles that were indestructible He called them “atomos” (meaning uncuttable)

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Atomic Models

Atomic Models. Democritus. This is the Greek philosopher Democritus who began the search for a description of matter more than 2400 years ago. He asked: Could matter be divided into smaller and smaller pieces forever, or was there a limit to the number of times a piece of

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Atomic Models

Atomic Models. Atomic Models. What does the Atom Look Like? Since the micro fine structure of the atom can not be viewed directly, deductive process must be used to discern its structure. The language of the atom includes Electrostatic behavior; i.e., positive/negative interaction

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Atomic Models

History of atoms. Atomic Models. Dalton’s Model (B) . Billiard Ball Model It is a neutral solid sphere. Smallest unit of matter . Neutral (no charge) . JJ. Thomson’s Model (D) . Plum Pudding Model Negatively-charged particles called electrons Soft positively charged sphere

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Early Atomic Models

Early Atomic Models . Week 2 Tuesday Unit 1. Models of Matter. Scientists have been wondering what matter is made of for over 2500 years. Empedocles theorised that all substances were made from the combination of four fundamental elements: earth, air, fire, water. .

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Atomic Models Webquest

Atomic Models Webquest. Introduction. For thousands of years, people have wondered and thought about what makes up the world around us. About 200 years ago, scientists had an idea that all of matter could be broken down into similar, basic particles.

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Early Atomic Models

Early Atomic Models. Dalton, Thomson, Bohr, Rutherford. Thomson Model. JJ Thomson obviously knew about Dalton’s atomic theory when he discovered the electron and characterized the proton that was first observed by Goldstein. Thomson took this information and developed a model of the atom.

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Atomic  Models

Atomic  Models. Around 400 BC a Greek scientist  called Democritus said that matter was  made up of small particles he named  'Atoma' (meaning indivisible). Dalton - 1803 - round ball with a positive nucleus Element made up of atoms that cannot be divided Atoms of the same element are alike

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4.02 Atomic Models

Click on Dalton's statements and a pop up will show you which 2 statements were proven false. 4.02 Atomic Models. Can you list all five statements of Dalton’s atomic theory ? And tell which 2 have been proven false? 1. 2. 3. 4. 5. Can you describe the work of Thompson ?

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Atomic Models

Atomic Models. What are the three particles of an Atom?. Protons. Neutrons. Electrons. -. Electrons. Protons. +. Neutrons. Turn your stable Li Atom into an Ion Atom with a Negative 1 charge. Turn you stable N Atom into an Ion Atom with a Charge of Positive 3.

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Atomic Models

Atomic Models. Atomic Models. The Adventures of J.J. Thomson, Plum Pudding and the Electron!. MMMMM…..That plum pudding looks delicious!. I LOVE plum pudding!. Atomic Models. JJ Thomson: English Physicist Experimented with “cathode rays”

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Atomic Relaxation Models

Atomic Relaxation Models. A. Mantero, B. Mascialino, Maria Grazia Pia INFN Genova, Italy P. Nieminen ESA/ESTEC. Monte Carlo 2005 Chattanooga, 18-21 April 2005. http://www.ge.infn.it/geant4/lowE/index.html. Geant4 Low Energy Electromagnetic Physics.

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Atomic Models

Atomic Models. Atomic Theories. Atomic Theory – A Short History Fifth Century, BCE Democritus Believed matter was composed of very small, individual particles that were indestructible He called them “atomos” (meaning uncuttable)

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Atomic Models

Atomic Models. Lesson 3 Spectra and Bohr. Objectives. You will be able to – Explain the conditions necessary to produce a continuous spectrum and a line spectrum. – Explain that each element has a unique line spectrum.

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Atomic Models

Atomic Models. Democritus. 430BC gave the atom it’s name. Atom: uncuttable Dark Ages no further work has been recorded The idea of atoms began to develop again in the 1600’s as people did experiments. John Dalton’s Atomic Theory 1776. Atoms Consist of elements that cannot be divided

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Atomic Relaxation Models

Atomic Relaxation Models. A. Mantero, B. Mascialino, Maria Grazia Pia INFN Genova, Italy. Monte Carlo 2005 Chattanooga, 18-21 April 2005. http://www.ge.infn.it/geant4/lowE/index.html. Geant4 Low Energy Electromagnetic Physics.

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Atomic Relaxation Models

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