apr 1, 1808 - John Dalton

Description:

Theory includes the following:

• All matter is made of small particles called atoms.

• Atoms are indivisible.

• Atoms cannot be created or destroyed in chemical reactions.

• All atoms in an element are identical, but different elements each have atoms that differ in mass and size.

• Chemical reactions can change the arrangement of atoms.

• Atoms can be combined to create chemical compounds.

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