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Atoms

TermDefinition
What is an isotope? Atoms of the same element with a different number of neutrons
What is an ion An atom that has lost/gained electrons to become +/-vely charged atom
What is relative isotopic mass? The mass of an atom of an isotope compared with 1/12th of the mass of a carbon-12 atom
What is relative atomic mass? (Ar) The weighted mean mass of an atom of an element compared with 1/12th of the mass of a carbon-12 atom
What is relative molecular mass? (Mr) The weighted mean mass of a molecule compared with 1/12th of the mass of a carbon-12 atom
What is relative formula mass? The weighted mean mass of a formula unit compared with 1/12th of the mass of a carbon-12 atom
Created by: Shajida
 

 



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