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Physics
Atomic structure
Atoms and Isotopes
Mass number, atomic number and isotopes
Mass number, atomic number and isotopes
What You Need to Know
Relate the number of electrons to the number of protons in an atom.
Define atomic number and mass number.
Define isotopes as atoms of the same element with different numbers of neutrons.
Relate differences between isotopes to differences in conventional representations of their identities, charges, and masses.
Revision Notes
1
Mass number, atomic number and isotopes
12 key terms
Practise with Past Papers
Key Terms & Definitions
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The structure of an atom
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