Physics 5054 · O Level · The atom

The atom — practice question

In two different isotopes of the same element, how do the proton numbers (atomic numbers) and the nucleon numbers (mass numbers) compare?

  • Aproton number different, nucleon number different
  • Bproton number different, nucleon number same
  • Cproton number same, nucleon number different
  • Dproton number same, nucleon number same

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