Chemistry 100 B
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Is any form of matter that has a uniform composition and can't be seperated by physical methods.
Made up of atoms from 2 or more elements chemically bounded together.
Molecular Compound / Ionic Compound
A molecule is the simplest form of a molecule compound. / A formula unit is the simplest form of an ionic compound.
Is a mix 2 or more of a pure substance that are physically combines not chimically combine.
Substances that compose it are so evenly distributed that a sample from one part to another will be chemically identical to another sample part.
Are mixtures of metallic elements.
Composition varies from one regions of the sample to another.
Shows all of the chemical elements, arranged in a specific pattern.
- (1869)(Russian Chemist)
- By the time he started working on the periodic table there were 63 known elements.
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