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Democritus discussed it as an unbreakable objects all made of the same material, but were formed into different shapes and sizes.

Then, Aristotle believed that all matter was Fire , Water, Air Ground and that matter had only four properties hot,cold,dry,wet. Next, Dalton he discussed that all atoms of a given element are exactly alike and atoms of different elements are different. Thompson was next, Thompson hinted that atom can be made of smaller particles and his theory was that atoms are made from a positively charged substance with negatively charged electrons like chips in a cookies. Rutherford theory was that atoms have a small, dense, positively charged center, which he called the “nucleus”. He said that nucleus is tiny compared to the atom as a whole, because the atom is mostly open space, like a cherry. Lastly, Bohr  theorized that electrons move in definite orbits around the nucleus, much like planets circle the sun.

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- Similarities/ differences between elements, compounds and mixtures.
- Atomic theory- what is it? How has it changed? who are the main scientists and their findings?
- Structure of an atom- what are the parts of an atom.

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The important Scientists were Democritus , Aristotle , Dalton , Thomson , Rutherford , Bohr Schrodinger, Heisenberg, Einstein.

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Which one can be found on the periodic table elements, compounds, mixtures?

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Which one can be found on the periodic table elements, compounds, mixtures?

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Element is the only one you're able to find in the periodic table.

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Element

Can have more than one atom of an element.

Compound

Bonded Together

Mixture

Dressing, Separate.

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Why is it easier to separate a mixture than a compound?

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Why is it easier to separate a mixture than a compound?

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It's easier because in a mixture each part keep its chemical identity.

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How is the way a mixture is combined DIFFERENT from how a compound is combined?

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How is the way a mixture is combined DIFFERENT from how a compound is combined?

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A compound is combined chemically while a mixture is combined physically.

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How is a heterogeneous mixture different from a homogeneous?

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How is a heterogeneous mixture different from a homogeneous?

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Heterogeneous mixture is different throughout while the homogeneous is the same throughout.

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What's the difference between an element and a compound?

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What's the difference between an element and a compound?

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An atom is one element found on the periodic table while a compound is made up of 2 or more chemically combined atoms.

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The theory that all matter is made up of tiny indivisible particles (atoms). The same type of atoms are identical and be combined to make compounds

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the basic unit of a chemical element