Chapter 1: Electricity - Oakton
Chapter 1: Electricity
Version 0.5 ¨C 08/30/2010
Polarity
Two components of an electric charge in
an atom are a
Proton ¨C [+] charge
Electron ¨C [-] charge
Normally in an atom the net charge is
neutral
Balance of [+] and [-] charges
Basic Structure of an Atom
Conductors
Conductors
Electrons move easily from one atom to another
Most metals are conductors
Examples: Copper, silver, gold
Insulators
Electrons stay in their orbits
Inhibit the sharing of electrons
Do not easily conduct electricity
Can also store an electrical charge
Dielectric
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