Atomic Theory of Matter PDF
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Uploaded by ThoughtfulGenius2841
Our Lady of Fatima University
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This document discusses the history of the atomic theory, from the early ideas of Democritus and Aristotle to the later developments by scientists like Dalton, Thompson, and Rutherford. It provides an overview of key concepts and figures in atomic theory.
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Atomic Theory of Matter Democritus Who proposed that matter is made up of tiny, indivisible particle called atomos meaning uncut Aristotle Contradicted to Democritus idea. Proposed matter is made up of 4 elements. Most influential people. He influences the Churc...
Atomic Theory of Matter Democritus Who proposed that matter is made up of tiny, indivisible particle called atomos meaning uncut Aristotle Contradicted to Democritus idea. Proposed matter is made up of 4 elements. Most influential people. He influences the Church John Dalton Formulated the Atomic theory 1) All matter is made of atoms. Atoms are indivisible and indestructible. Cross section of Atom 2) All atoms of a given element are identical in mass and properties Isotopes 3) Compounds are formed by a combination of two or more different kinds of atoms. 4) A chemical reaction is a rearrangement of atoms. Evolution of Atom Structure JJ. Thompson Discovered the Electron Working in Cathode ray Ernest Rutherford Discovered the proton Alpha- Scattering experiment NUCLEAR MODEL Sub-atomic particle mass Old computation However…….. In reality Based on the Periodic Table of Elements 1st attempt 2nd attempt by James Chadwick Sub-atomic particle mass POP-UP MODEL Activity with 10members Make a timeline on the history of the atom. Showing the ff: 1. Model’s name and drawing(3D) 2. Discoverer 3. Year 4. From Dalton to Chadwick 5. The 1st page will be the Title of the activity. 6. Be creative in making your pop-up models
