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Transcript
Atomic Theory
(Or a quick Chemistry Review)
Atomic Theory
Q: What does science study?
A: The natural world, the physical universe
Q: What are the components of the P.U?
A: matter, energy, forces
“Flavors of Atoms”
(But which are “atoms of life”?)
“Guts” of Atom
Name
proton
Location nucleus
Charge
Mass
+1
1 amu
neutron
electron
nucleus
orbit
0
~1 amu
-1
~1/2000
Vocabulary
number (Z) –
 Atomic mass (M)
 Atomic
 Valence
electrons –
rule –
 “bus-seat” rule
 Octet
How to Build an Atom
1)
2)
3)
Determine Z
Add neutrons
Add electrons
(# electrons = # protons)
Rules:
* Add up to 2 e to 1st E level
* Add up to 8 e to 2nd E level
* Add up to 8 e to 3rd E level …….