Chemistry 9701 · AS & A Level · Atomic structure

Atomic structure — practice question

How many protons, neutrons and electrons are there in the ion $^{54}_{26}\text{Fe}^{3+}$?

  • Aprotons: 26, neutrons: 28, electrons: 23
  • Bprotons: 26, neutrons: 28, electrons: 29
  • Cprotons: 29, neutrons: 25, electrons: 23
  • Dprotons: 29, neutrons: 25, electrons: 26

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