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Cards In This Set
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Positively charged subatomic particles found in the nucleus of an atom
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Protons
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Negatively charged subatomic particles found outside the nucleus of an atom
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Electrons
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Neutrally charged subatomic particles found inside the nucleus of an atom
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Neutrons
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The center of an atom where protons and neutrons can be found
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Nucleus
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The number found on the periodic table that gives the number of protons in an atom
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Atomic Number
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Atom of an element with the same number of neutrons but a different number of neutrons
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Isotope
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Where is most of the mass of an atom located?
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Nucleus
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What do atoms of an element have in common with other atoms of the same element?
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Same number of protons
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Why do isotopes of the same element have different atomic masses?
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Same number of protons, but different number of electrons.
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Sum of the number of protons and neutrons in the nucleus of an atom.
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Mass number
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If the Mass Number for Chlorine is 37 and the Atomic Number is 17. How many neutrons are in this isotope?
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20
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SI base unit used to measure the amount of a substance.
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Mole
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What is Avagadro's Number?
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6.022 x 10^23
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Unit of mas the describes the mass of an atom or molecule.
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Unified Atomic Mass
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A region in an atom where there is a high probability of finding electrons.
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Orbital
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