Bonding, Structure & Properties of Matter Exam Questions
Questions on ionic bonding, covalent bonding, metallic bonding, states of matter, properties of ionic compounds, simple molecular compounds, giant covalent structures, polymers, allotropes of carbon, and nanoparticles. Download free past paper questions organised by topic with mark schemes.
Frequently Asked Questions
What is ionic bonding GCSE Chemistry?
Ionic bonding is the transfer of electrons from a metal to a non-metal. Metals lose electrons to form positive ions (cations). Non-metals gain electrons to form negative ions (anions). The opposite charges attract.
What is covalent bonding GCSE Chemistry?
Covalent bonding is the sharing of electron pairs between non-metal atoms. Each shared pair forms one bond. Double bonds share 2 pairs. Draw dot and cross diagrams to show this!
Why do ionic compounds have high melting points?
Ionic compounds form giant lattice structures with strong electrostatic forces between oppositely charged ions. A lot of energy is needed to overcome these forces, so melting points are high.
What are the allotropes of carbon GCSE?
You need to know: Diamond (4 bonds, hard, high MP), Graphite (3 bonds + delocalised electrons, conducts electricity, slippery layers), Graphene (single layer, strong, conducts), and Fullerenes (buckyballs, nanotubes).
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