Unit 2 Atoms, Ions, and Molecules

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10 Terms

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Law of Definite Proportion

Any mass of an element reacted with a proportional mass of another element forms the same compound

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Covalent Molecule

Two or more bonded atoms with the electrons being shared

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Atomic Weight

Average of the isotope masses with respect to abundance

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Groups

Elements that have similar properties on the period table (vertical)

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Noble Gases

Nonreactive group of gases

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Nucleus

Rutherford discovered this through the Gold foil experiment

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Cation

Positive ion

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Electron

Negative subatomic particle

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Isomer

Compound with the same formula but different structure. (Ex: glucose, fructose)

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Neutrons

Neutral subatomic particle