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9 Cards in this Set
- Front
- Back
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Atom
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The Basic particle from which all elements are made; the smallest particle of an element that has the properties of that element.
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electron
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A tiny negatively charged particle that moves around the outside of the nucleus of an atom.
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proton
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A small positively charged particle that is found in the nucleus of an atom.
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nucleus
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The central core of an atom which contains protons and nuetrons.
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energy level
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A region of an atom in which electrons of the same energy are likely to be found.
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mass number
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The sum of protons and nuetrons in the nucleus of an atom.
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isoetope
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An atom with the same number of protons and a different number of nuetrons from other atoms of the same element.
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atomic number
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The number of protons in the nucleus of an atom.
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nuetron
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A small particle in the nucleus of the atom, with no electrical charge.
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