Chemistry 0620 · IGCSE · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

Which statement gives the definition of the atomic number of an element?

  • Athe group number of the element
  • Bthe mass of one atom of the element
  • Cthe number of particles in the nucleus of one atom of the element
  • Dthe number of protons in the nucleus of one atom of the element

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