FS- Ch4-Basic Food Chemistry: The Nature of Matter

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Chemistry

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The science that studies the composition, structure, properties, and changes of matter.

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Matter

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Anything that occupies space and as mass.

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Atom

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The smallest unit of an element, consisting of protons, neutrons, and electrons.

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Subatomic Particle

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Particles that are smaller than an atom, including protons, neutrons, and electrons.

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Nucleus

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The central part of an atom, containing protons and neutrons.

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Proton

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A positively charged subatomic particle found in the nucleus of an atom.

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Neutron

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A subatomic particle with no charge, found in the nucleus of an atom.

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Electron

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A negatively charged subatomic particle that orbits the nucleus of an atom.

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Orbital

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A region in an atom where there is a high probability of finding electrons.

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Element

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A pure substance made of only one kind of atom.