1. Structure of the Atom

2. Parts of the Atom Neutron: The part of the atom with no charge
Electron: The part of the atom with a negative charge
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Nucleus: The center or brain of the atom. Contains the protons & neutrons
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Valence Shell: The outer most shell of an atom
Proton: The part of the atom with a positive charge

3. Electron Flow
Some materials possess loosely bound electrons in the outer shell (valence) of their atoms. These materials are classified as Conductors. Their electrons are easily dislodged and are capable of moving from one atom to the next. This movement of electrons is called Electron Flow. Electron movement in one direction is called Direct Current.
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4. Atom Vocabulary Atom Nucleus Proton Neutron Electron (e-)
The building block of matter
Nucleus
The center/brain of the atom
Proton
Positively charged particle
Neutron
Particle with no charge
Electron (e-)
Negatively charged particle

5. Atom Vocabulary Valence Shell Conductor Insulator
Outer most shell
Conductor
Material with loosely bound electrons
Allows e- flow
Insulator
Material with tightly bound electrons
No e- flow
Negative Ion- Atom with more e- than protons
Positive Ion – Atom with more protons than e-