Isotope Ion Composition

00:00 1 marks

What is the number of neutrons and electrons in the ion $^{56}_{26}\mathrm{Fe}^{3+}$?

A

30 neutrons, 23 electrons
B

30 neutrons, 26 electrons
C

56 neutrons, 23 electrons
D

56 neutrons, 29 electrons

Hint Hint

Hint

Calculate neutrons as mass number minus protons; electrons as protons minus charge

Answer Answer
Mark Scheme Mark Scheme
Explanation Explanation
Examiner Tips Examiner Tips
Common Errors Common Errors
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Answer Answer

Complete Answer

30 neutrons, 23 electrons

Mark Scheme Mark Scheme

Answer Explanation Answer Explanation

Examiner Tips Examiner Tips

Common Errors Common Errors

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