Matter & Atoms - Unit 1: Chemical Basis of Life & Macromolecules

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8 Terms

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Matter

Anything with mass and volume.

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Element

Pure substance made of one atom type.

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Compound

Substance with 2+ elements in fixed ratio.

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CHNOPS

Main elements in living things (C,H,N,O,P,S).

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Atom

Smallest unit of an element.

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Ion

Atom with a charge due to electron loss/gain.

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Isotope

Atoms of same element with different neutrons.

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Isomer

Same molecular formula, different structure.