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8 Cards in this Set
- Front
- Back
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list three subatomic particles
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protons, neutrons, electrons
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how do we know the number of neutrons in an atom?
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the mass-protons
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what is the mass number
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protons+neutrons
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what are 2 ways of naming isotopes?
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hyphen notation(carbon-14) or nuclear symbol
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how to find the average atomic mass?
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percent abundance times relative mass. add all together, divide by 100
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how to find charge?
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protons-electrons
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what is an ion?
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charged atoms (different amount of electrons)
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what is an isotope?
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elements with different masses
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