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2.3 Ionic bonding

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Question 25
F

Why does the formula MgO\mathrm{MgO}MgO contain one Mg2+\mathrm{Mg^{2+}}Mg2+ ion for each O2−\mathrm{O^{2-}}O2− ion?

[1]
A

The ions must have the same number of electrons

B

The charges on the ions must cancel out

C

Each atom has the same number of outer electrons

D

The two ions have approximately equal masses

Markscheme

2.3 Ionic bonding Questions

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

56 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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