Chemistry 5070 · O Level · Atomic structure and the Periodic Table

Atomic structure and the Periodic Table — practice question

Cerium, Ce, has atomic number 58. One $\text{Ce}^{4+}$ ion contains 140 nucleons in its nucleus. How many protons, neutrons, and electrons are present in one $\text{Ce}^{4+}$ ion?

  • Aprotons: 58, neutrons: 82, electrons: 54
  • Bprotons: 58, neutrons: 82, electrons: 62
  • Cprotons: 82, neutrons: 58, electrons: 54
  • Dprotons: 82, neutrons: 58, electrons: 62

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