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10 Cards in this Set
- Front
- Back
- 3rd side (hint)
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atom
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particle that consists of a nucleus surrounded by electrons
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proton
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positively charged
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neutron
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neutral charge
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electron
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negatively charged
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elements
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building blocks of all compounds and cannot be decomposed into simpler substances by chemical means
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mass number
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number of protons AND neutrons
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A on the top of the element
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atomic number
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number of protons
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Z on the bottom of the element
identity number of any element |
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isotopes
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two or more atoms of the same element that contain different numbers of neutrons
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atomic weight/molar mass
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the exact mass of an atom
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given in AMU
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mole
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number of particles in a gram of a substance
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6.022x10^23
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