atomic structures and isotopes/ relative mass
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6 Terms
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Relative atomic mass
Mean mass of an atom relative to 1/12 of the mass of a C12 atom
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Relative isotopic mass
Mass of an isotope relative to 1/12 of the mass of a C12 atom
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What are isotopes
Atoms of the same element with different number of neutrons
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Atomic number
Number of proton
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Mass number
Number of protons + number of neutrons
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An element has 3 identifying features shown on the periodic table
