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10 Cards in this Set
- Front
- Back
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what are protons?
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positive subatomic particles 0
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what are nuetrons?
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equlas the same number of protons +
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what are electrons?
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the number of protons plus the number of nuetrons. -
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what is the nucleus?
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The center of the atom where most of the mass is located.
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what is the mas number?
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the number of protons + number of neutrons.
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What is an Ion?
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Atom with unequal number of (+) protons and (-) electrons
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What is an Isotope?
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Atom with extra or missing nuetrons.(change mass)
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What is the Atomic number?
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the number of protons(+)in the atom.
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What is the Periodic Table?
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Provides the Atomic numbers and the mass.
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A nuetral atom always has......
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the same number of positive protons and negitive electrons.
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