Atomic Theory Overview

A quick overview of how our view of the atom has changed from Dalton through Rutherford. Note that this screencast does not introduce concepts of quantum mechanics, which will be presented in a later unit.
Table of Contents:
00:08 - Dalton’s Atomic Theory (1808)
01:13 - Modern Atomic Theory
01:45 - Modern Atomic Theory #2
02:21 - Discovery of the Electron
03:05 - Thomson’s Atomic Model
03:34 - Conclusions from the Study of the Electron
04:06 - Rutherford’s Gold Foil Experiment
05:44 - Rutherford’s Findings
06:38 - Atomic Particles
07:19 - The Atomic Scale
07:49 - Isotopes
08:38 - Atomic Masses
09:40 - Atomic Number
10:10 - Mass Number

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Experiments on gases, reaction, calorimetry, elemental analysis already demonstrated matter be made of discrete unit and not continuum

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And today's its a syllabus of class 9 chemistry students