Chemistry 201 - Chapter 2: Atomic Structure, Periodic Table, and Molar Mass

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Last updated 11:42 PM on 9/29/26
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5 Terms

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Atom

The smallest submicroscopic particle that retains all the chemical properties of a given element.

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Molecule

A substance formed when two or more atoms come together and bond in specific geometric arrangements.

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Dalton's Atomic Theory

A theoretical model of chemical nature stating that matter consists of indestructible atoms that rearrange during chemical reactions, where pure elements contain identical atoms, and different elements have different masses and properties.

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Cathode

The negatively charged electrode in a cathode ray tube or gas discharge tube.

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Anode

The positively charged electrode in a cathode ray tube or gas