Chemistry 2.0 / 5 based on 1 rating ? ChemistryASOCR Created by: maiwandCreated on: 07-04-13 18:43 Define: Isotope Are atoms of the same element with different numbers of Neutrons 1 of 5 Relative isotopic mass Is the mean mass of an atom of an isotope compared with 1-12th of the mass of an atom of carbon-12 2 of 5 Relative atomic mass Is the weighted mean mass of an atom of an element compared with 1-12th of the mass of an atom of carbon-12 3 of 5 Relative molecular mass Is the weighted mean mass of a molecule compared with 1-12th of the mass of an atom of carbon-12 4 of 5 Relative formula mass Is the weighted mean mass of a formula unit compared with 1-12th of the mass of an atom of carbon-12 5 of 5
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