Atomic Models Lecture Notes

Introduction

• Welcome to Spring Fest
• Focus on atomic models: Thomson, Rutherford, and later models

Thomson's Atomic Model

• Proposed after discovery of electrons and protons
• Also known as: Plum Pudding Model, Watermelon Model
• Key idea: Electrons embedded in a sphere of positive charge
  • Compared to pudding with raisins or watermelon with seeds
• Positively charged