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15 Cards in this Set
- Front
- Back
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Matter
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Anything that has mass and takes up space.
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Atom
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an extremely small particle that is the vasic unit of matter and is composed mainly of protons, neutron, ane electrons.
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Proton
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positively charged particle located in the nucleus of an atom.
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Neutron
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negatively (without a charge) charged particle located in the nucleus of an atom.
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Electrons
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negatively charged particles that form a cloud around the nucleus of an atom.
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Nucleus
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the dense central core of an atoma,almost the whole mass of the atom is concentrated in the nucleus
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Element
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natural or man-made (synthetic matter that is made up on only one types of atom
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Periodic Table
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a chart that organizes all know elements with about the same energy number of protons in the nucleo\us of hte element.
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Electron Shell
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region of space around the nucleus that have electrons with about the same energy and are about the same distance from the nucleus.
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Atomic number
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number of protons in the nucleus of an atom
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Mass number
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total number of protons and number of neutrons in the nucleus of an atom
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Volume
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the amount of space taken up by matter
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Density
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a physical property of matter that can be foun by dividing the mass of a material by its volume
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Compound
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a form of matter made by chemically combining two or more
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Chemical formula
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Notation made up of the symbols of the elements and number of elements in a compound
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