Atomic Structure

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Atomic Structure
Unit 3
http://www.unit5.org/chemistry
Guiding Questions
How do we know atoms exist?
How do we know that electrons, protons, and
neutrons exist?
What is radiation and what does it come from?
Is radiation safe?
Where does matter come from?
How are elements formed?
Are all atoms of an element the same?
How do we measure atoms if they are so small?
How do we know what stars are made of?
What is wrong with this picture?
Table of Contents
‘Atomic Structure’
A). Development of the Atom
Dalton Model of the Atom
Thomson
Rutherford
Bohr
Quantum Mechanical
Review
Millikan Oil Drop
The Light slides have been moved to a separate PP.
C). Light
Frequency and Wavelength
Emission Spectra
Excited state vs. Ground State
Hydrogen Spectral Lines
Electromagnetic spectrum
Color
Photoelectric Effect
B). Particles in the Atom
Electron Configuration & Orbitals
Electron Configurations
Periodic Table – Orbital filling order
Isotopes
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