Inside an Atom

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Inside an Atom

• What do you find?

2
The world is made up of how many single
substances?

• 92

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What only 92 you say!

• Who knows what those 92 substances are called?

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Thats right!

• Elements
• What is an element?
• Pure substance that is made up of only one atom.

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What is an atom?

• the smallest component or part of an element
  having the chemical and physical properties of
  that element

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What is the center of the atom called?

• The core of every atom is called the nucleus.

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What are the two parts of the nucleus?

• Protons Positively charged particles found
  inside of the atoms nucleus.
• Neutrons Carry no charge Found in the nucleus.

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What is an electron?

• Outside of the nucleus
• Negatively charged particles.
• Usually the same number as protons.

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The parts of an atom

• The protons, neutrons, and electrons are called
  subatomic particles,
• Subatomic means smaller parts that make up an
  atom.

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How to read the Periodic Table
Atomic Number
Element Symbol
Atomic Mass
Element Name
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What does the atomic number mean?

• Atomic number tells you how many protons are in
  the nucleus.

• If the atomic number of oxygen is 8, how many
  protons are there?
• 8

• Copper has 29 protons. What is its atomic
  number?
• 29

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STOP HERE For Today
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Chorus

• They are so small.
• (snap, snap)
• Theyre round like ball.
• (snap, snap)
• They make up the air.
• Theyre everywhere.
• Cant see them at all.

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Atoms Family Song

• Verse 1
• Theyre tiny and theyre teeny,
• Much smaller than a beany,
• They never can be seeny,
• The Atoms Family.

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Chorus

• They are so small.
• (snap, snap)
• Theyre round like ball.
• (snap, snap)
• They make up the air.
• Theyre everywhere.
• Cant see them at all.

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2nd Verse

• Together they make gases, and liquid like
  molasses,
• And all the solid masses,
• The Atoms Family
• Chorus

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Chorus

• They are so small. (snap, snap)
• Theyre round like ball. (snap, snap)
• They make up the air.
• Theyre everywhere.Cant see them at all.

20
Chorus

• They are so small.
• (snap, snap)
• Theyre round like ball.
• (snap, snap)
• They make up the air.
• Theyre everywhere.
• Cant see them at all.

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3rd Verse

• Neutrons can be found,
• Where protons hang around
• Electrons they surround
• The Atoms Family.
• (Chorus)

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Who are the residents of Matterville?
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How do you find the following information about
an element?

• Number of protons

Equal to the atomic number
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How do you find the following information about
an element?

• Number of electrons

Equal to the atomic number
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Why are protons and electrons the same number?

• All things in nature must balance.
• There must be positive and negative charges to
  equal zero.
• If there are more protons are added, then that is
  no longer the same element.

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Why are protons and electrons the same number?

• If there are protons taken away, it is not the
  same element.
• All elements have an exact number of protons.
  That is how they are arranged by atomic number.

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How do you find the number of neutrons?