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2.3 Ionic bonding

2.3 Ionic bonding

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Question 4

Iron(III) oxide, Fe2O3\text{Fe}_2\text{O}_3Fe2​O3​, is an ionic compound.

The atomic number of iron is 26.

What is the electronic configuration of the iron ion in iron(III) oxide?

A

1s22s22p63s23p63d34s21s^2 2s^2 2p^6 3s^2 3p^6 3d^3 4s^21s22s22p63s23p63d34s2

B

1s22s22p63s23p63d61s^2 2s^2 2p^6 3s^2 3p^6 3d^61s22s22p63s23p63d6

C

1s22s22p63s23p63d51s^2 2s^2 2p^6 3s^2 3p^6 3d^51s22s22p63s23p63d5

D

1s22s22p63s23p63d44s11s^2 2s^2 2p^6 3s^2 3p^6 3d^4 4s^11s22s22p63s23p63d44s1

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2.3 Ionic bonding Questions

  1. GCSE
  2. /Chemistry
  3. /2.3 Ionic bonding

32 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.

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