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Physical Science
Atoms, Molecules, and Matter
What is an Atom?
An atom is the smallest particle of an
element that has all the properties of
that element.
Atoms are the...
Structure of Atoms
Nucleus – the nucleus contains neutrons
(no charge) and protons (positive
charge).
Electrons – tiny par...
What is an element?
An element is a substance that cannot
be broken down any further.
They are the building blocks of matt...
What are molecules?
Molecules are the smallest particles
that can be divided without chemical
change.
They are made of two...
H       H


    O
H       H

    O       H 2O
Atoms, Molecules, And Matter
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Atoms, Molecules, And Matter

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Transcript of "Atoms, Molecules, And Matter"

  1. 1. Physical Science Atoms, Molecules, and Matter
  2. 2. What is an Atom? An atom is the smallest particle of an element that has all the properties of that element. Atoms are the building blocks of elements.
  3. 3. Structure of Atoms Nucleus – the nucleus contains neutrons (no charge) and protons (positive charge). Electrons – tiny particles surrounding the nucleus (negative charge).
  4. 4. What is an element? An element is a substance that cannot be broken down any further. They are the building blocks of matter. Elements combine to make the world around us. There are only a few elements found alone in nature:  Ex: Silver and Gold
  5. 5. What are molecules? Molecules are the smallest particles that can be divided without chemical change. They are made of two or more atoms joined together, can be the same element or different elements. A molecule of water is written H2O. This means there are 2 atoms of hydrogen and one atom of oxygen.
  6. 6. H H O
  7. 7. H H O H 2O
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