The AtomThe Atom
• Smallest piece of matter
that’s still matter
• “Building blocks” of the
universe
• Atoms are the “Lego'...
The AtomThe Atom
• All matter is made out of
atoms
–Solids, liquids, gasses
Its PartsIts Parts
Protons
Positively
charged (+)
+
+
+ o
oo o
-
-
-
Proton (+)
Its PartsIts Parts
Neutrons
Neutral charge
(o)
+
+
+ o
oo o
-
-
-
Proton (+)
Neutron (o)
Its PartsIts Parts
Protons and neutrons are
tightly packed together in
the nucleus- the center of
the atom
Most of the m...
+
+
+ o
oo o
-
-
-
Proton (+)
Neutron (o)
Nucleus (+)
Its PartsIts Parts
ElectronsElectrons
Negative charge (--)
Very small, and have
almost no mass
ElectronsElectrons are ...
+
+
+ o
oo o
-
-
-
Proton (+)
Neutron (o)
Electron (-)
Nucleus (+)
Its PartsIts Parts
 Most atoms have the same
number of protons as electronselectrons
 The no. of (+) = the no. of (-)
 ...
The Atom
The Atom
The Atom
The Atom
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The Atom

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The Atom

  1. 1. The AtomThe Atom • Smallest piece of matter that’s still matter • “Building blocks” of the universe • Atoms are the “Lego's” of the universe
  2. 2. The AtomThe Atom • All matter is made out of atoms –Solids, liquids, gasses
  3. 3. Its PartsIts Parts Protons Positively charged (+)
  4. 4. + + + o oo o - - - Proton (+)
  5. 5. Its PartsIts Parts Neutrons Neutral charge (o)
  6. 6. + + + o oo o - - - Proton (+) Neutron (o)
  7. 7. Its PartsIts Parts Protons and neutrons are tightly packed together in the nucleus- the center of the atom Most of the mass of an atom is in the nucleus
  8. 8. + + + o oo o - - - Proton (+) Neutron (o) Nucleus (+)
  9. 9. Its PartsIts Parts ElectronsElectrons Negative charge (--) Very small, and have almost no mass ElectronsElectrons are found outside the nucleus
  10. 10. + + + o oo o - - - Proton (+) Neutron (o) Electron (-) Nucleus (+)
  11. 11. Its PartsIts Parts  Most atoms have the same number of protons as electronselectrons  The no. of (+) = the no. of (-)  Charges cancel each other  The whole atom has no charge

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