Introduction

The "Solid sphere" model

The "Plum Pudding" Model

Knowledge Extension

Lesson Objectives:
1. Understand John Dalton’s “solid sphere” model of the atom 

2. Explore how J.J. Thomson proposed a new model of the atom in 1904 known as the “plum pudding model”.

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Chemistry Clip: The Dalton Model and The Plum Pudding Model