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Chemistry A-Level: Year One.
Atomic Structue - Year One
Definitions of Atomic structure
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Amelia Smith
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Cards (3)
Relative Atomic Mass
The average mass of an atom of an element when compared to the mass of 1/12 an atom of
carbon-12
.
Relative Isotopic Mass
The average mass of an isotope when compared to the mass of 1/12 an atom of
carbon-12
Relative molecular Mass ( Mr )
The average mass of a molecule when compared to the mass of 1/12 an atom of
carbon-12