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Ch. 10 - Atomic Structure
I. Structure of the Atom
(p.270-271, 276-277)
 Chemical Symbols
 Subatomic Particles
p.270
QUIZ ON
Thursda
y 9/13
A. Chemical Symbols
 Capitals matter!
 Element symbols contain ONE capital
letter followed by lowercase letter(s) if
necessary.
Metal that
forms bright
blue solid
compounds.
Co vs. CO
Poisonous
gas.
B. Subatomic Particles
ATOM
ATOM
NUCLEUS
NUCLEUS
ELECTRONS
ELECTRONS
PROTONS
PROTONS
NEUTRONS
NEUTRONS
POSITIVE
CHARGE
NEUTRAL
CHARGE
Most of the atom’s mass.
NEGATIVE
CHARGE
NEGATIVE CHARGE
in a neutral atom
Atomic Number
equals the # of...
B. Subatomic Particles
 Quarks
• 6 types
• 3 quarks = 1
proton or 1
neutron
He
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