O-LevelChemistryAtomic Structure5070/12 · May/June 2018 · Q51 Mark
The atomic number of cerium, Ce, is 58. A Ce²⁺ ion has 140 nucleons in its nucleus. How many protons, neutrons, and electrons are there in one Ce⁴⁺ ion?
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A58, 82, 54
B58, 82, 62
C82, 58, 54
D82, 58, 62
✓ Correct answer
A: 58, 82, 54
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