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Chapter 3 Structure of the Atom

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Presentation on theme: "Chapter 3 Structure of the Atom"— Presentation transcript:

1 Chapter 3 Structure of the Atom
Section 2 The Structure of the Atom Chapter 3 Structure of the Atom Atom - smallest particle of an element that retains the chemical properties of that element.

2 Nucleus - very small region located at the center of an atom.
Section 2 The Structure of the Atom Chapter 3 Subatomic particles Nucleus - very small region located at the center of an atom. protons – positive charge neutrons - neutral particles Electrons – negatively charged particles surrounding the nucleus

3 Properties of Subatomic Particles
Section 2 The Structure of the Atom Chapter 3 Properties of Subatomic Particles

4 Discovery of the Electron
Section 2 The Structure of the Atom Chapter 3 Discovery of the Electron

5 Thomson’s Cathode-Ray Tube Experiment
Visual Concepts Chapter 3 Thomson’s Cathode-Ray Tube Experiment Click below to watch the Visual Concept. Visual Concept

6 Millikan’s Oil Drop Experiment
Visual Concepts Chapter 3 Millikan’s Oil Drop Experiment Click below to watch the Visual Concept. Visual Concept

7 Discovery of the Atomic Nucleus
Section 2 The Structure of the Atom Chapter 3 Discovery of the Atomic Nucleus gold foil experiment - led to the discovery of a very densely packed bundle of matter with a positive electric charge Rutherford called this positive bundle of matter the nucleus.

8 Section 2 The Structure of the Atom
Chapter 3 Gold Foil Experiment

9 Gold Foil Experiment on the Atomic Level
Section 2 The Structure of the Atom Chapter 3 Gold Foil Experiment on the Atomic Level

10 Rutherford’s Gold Foil Experiment
Visual Concepts Chapter 3 Rutherford’s Gold Foil Experiment Click below to watch the Visual Concept. Visual Concept

11 Chapter 3 Forces in the Nucleus
Section 2 The Structure of the Atom Chapter 3 Forces in the Nucleus nuclear forces - short-range proton-neutron, proton-proton, and neutron-neutron forces that hold the nuclear particles together

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