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10 Cards in this Set
- Front
- Back
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Relative Isotopic mass |
The mass of an atom of an isotope compared to 1/12 of the mass of an atom of carbon twelve. |
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Relative atomic mass |
The weighted mean mass of an atom, compared to 1/12 of the mass of an atom of carbon twelve. |
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Isotope |
Atoms of the same element with different numbers of neutrons and different masses. |
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Relative formula mass |
The weighted mean mass of a formula unit compared to 1/12 of the mass of an atom of carbon twelve. |
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Relative molecular mass |
The weighted mean mass of a molecule compared to 1/12 of the mass of the atom of carbon twelve. |
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The relative mass, charge and location of a proton |
Mass = 1 Charge = + Location = nucleus |
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The relative mass, charge and location of a neutron |
Mass = 1 Charge= none Location = nucleus |
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The relative mass, charge and location of an electron |
Mass = 1/2000 Charge = -- Location = orbits within shells/ energy levels |
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The proton/atomic number |
number of protons and electrons |
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The mass number |
number of protons and neutrons |
