Atomic structure and relative masses

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  • Created by: zofiaf
  • Created on: 15-02-14 16:28

1. What is the standard measurement of relative mass?

  • 1/13 of the mass of a carbon 13 atom
  • 1/13 of the mass of a carbon 12 atom
  • 1/12 of the mass of a carbon 12 atom
  • 1/12 of the mass of a carbon atom
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2. Different isotopes of the same element react the same because

  • Chemical reactions are all the same
  • Chemical reactions involve electrons not neutrons
  • Chemical reactions involve protons not neutrons
  • Chemical reactions involve neutrons not electrons

3. Relative charge and mass of protons

  • Mass= 1 Charge= 0
  • Mass= 1 Charge= 1+
  • Mass= 1/2000 Charge= 1-
  • Mass= 1 Charge= 1-

4. The relative isotopic mass is the same as

  • Relative number
  • Mass number
  • Isotope number
  • Atomic number

5. ions have a different number of

  • Protons + neutrons
  • Nothing
  • Protons + electrons
  • Electrons + neutrons

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