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CAIE A-Level Chemistry 3.2.2 Ionic Bonding in Lattices

Practise describing three-dimensional ionic lattices in sodium chloride, magnesium oxide and calcium fluoride.

Syllabus
2028–2030
Course
Chemistry 9701
Level
AS

Exam points

  • describe a regular repeating three-dimensional arrangement of positive and negative ions
  • state that each ion attracts oppositely charged neighbours in all directions
  • use ion charges and formula ratio correctly for NaCl, MgO and CaF2 without implying discrete molecules

3.2.2—Ionic bonding, e.g. sodium chloride, magnesium question 1

[Maximum number: 1]

The melting points of some solids are shown in Table 1.1.

Table 1.1

Table 1.1

State the type of bonding present in magnesium and in sodium chloride. bonding in magnesium
bonding in sodium chloride

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