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3 Cards in this Set
- Front
- Back
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Protons, neutrons and electrons
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No of protons=atomic number. No of electrons= no of protons. No of neutrons = mass number - atomic number
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Isotopes
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Atoms of the same element with a different number of neutrons. They have the same atomic number but different mass number
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Relative atomic mass (RAM)
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The average mass of all the isotopes taking into account the relative proportions
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