Cameroon GCE A-Level Chemistry Practice Questions - Cameroon General Certificate Of Education Advanced Level Chemistry (Subject Code 0715) Exam

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How many protons, neutrons, and electrons are present in a single iron(III) ion, 56Fe3+? (Atomic number of Fe = 26, Mass number = 56)

26 protons, 30 neutrons, 23 electrons 26 protons, 56 neutrons, 23 electrons 23 protons, 30 neutrons, 26 electrons 26 protons, 30 neutrons, 29 electrons

Correct Answer:

26 protons, 30 neutrons, 23 electrons

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