Magnesium fluoride has a very high melting point.
Magnesium fluoride does not conduct electricity when solid but does conduct electricity when molten.
What type of substance is magnesium fluoride?
Giant covalent
Ionic
Metallic
Simple molecular
59 exam-style questions on Edexcel GCSE Chemistry 2.5 Types of substance, covering 2.5.1 Classifying substances by structure and bonding, 2.5.2 Properties of ionic and simple molecular substances, 2.5.3 Giant covalent structures: diamond and graphite, 2.5.4 Fullerenes, graphene and simple polymers, 2.5.5 Properties of metals and non-metals, and 2.5.6 Limitations of bonding models and representations. Each one has a worked solution and a mark scheme showing where the marks go.