GCSE Chemistry
Structure and bonding
revision.
Atoms, electronic structure, ionic, covalent and metallic bonding, and the periodic table.
Structure and bonding guides
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Students type: Mendeleev periodic table gaps GCSE Chemistry
Open guide Revision guideTransition metalsStudents type: transition metals properties GCSE Chemistry Triple
Open guide Revision guideGroup 0 noble gasesStudents type: noble gases full outer shell GCSE Chemistry
Open guide Revision guideGroup 7 halogensStudents type: Group 7 halogen displacement GCSE Chemistry
Open guide Revision guideGroup 1 alkali metalsStudents type: Group 1 alkali metals reaction with water GCSE
Open guide Revision guideGiant covalent structuresStudents type: diamond vs graphite structure GCSE Chemistry
Open guide Revision guideStates of matterStudents type: states of matter particle model GCSE Chemistry
Open guide Revision guideMetallic bondingStudents type: metallic bonding delocalised electrons GCSE
Open guide Revision guideCovalent bondingStudents type: covalent bonding shared pair GCSE Chemistry
Open guide Revision guideIonic bondingStudents type: ionic bonding giant lattice GCSE Chemistry
Open guide Revision guideIons and formulaeStudents type: ionic formulae GCSE Chemistry MgCl2 Al2O3
Open guide Revision guideElectronic structureStudents type: electronic structure 2 8 8 GCSE Chemistry
Open guideAtomic structure
Protons, neutrons and electrons, atomic and mass numbers, isotopes, electronic structure and the evidence that replaced the plum pudding model.
Bonding and structure
Ionic, covalent and metallic bonding, giant lattices versus simple molecules, and why diamond, graphite and metals behave as they do.
The periodic table
Groups and periods, Mendeleev, Group 1, Group 7, Group 0, and how electronic structure explains reactivity trends.
Atoms, elements and compounds
GCSE Chemistry revision on atoms, elements and compounds: particle diagrams, chemical formulae, and how a mixture differs from a reaction that makes a new substance.
Isotopes
GCSE Chemistry revision on isotopes: same proton number, different neutrons, relative atomic mass as a weighted mean, and why chemical properties stay the same.
Electronic structure
GCSE Chemistry revision on electronic structure: shells 2, 8, 8, how group and period follow the outer electrons, and why noble gases are unreactive.
Ions and formulae
GCSE Chemistry revision on ions and formulae: charges on Na⁺, Mg²⁺, O²⁻, SO₄²⁻, balancing charges in salts, and writing formulae with state symbols.
Ionic bonding
GCSE Chemistry revision on ionic bonding: electron transfer from metal to non-metal, giant ionic lattices, and why salts have high melting points but only conduct when molten or dissolved.
Covalent bonding
GCSE Chemistry revision on covalent bonding: shared electron pairs in H₂, Cl₂, H₂O, CH₄ and CO₂, and why simple molecules have low melting points and do not conduct.
Metallic bonding
GCSE Chemistry revision on metallic bonding: positive ions in a sea of delocalised electrons, and why metals conduct, bend and often have high melting points.
States of matter
GCSE Chemistry revision on states of matter: particle arrangement in solids, liquids and gases, changes of state, and how bonding type decides melting and boiling points.
Giant covalent structures
GCSE Chemistry revision on giant covalent structures: diamond, graphite, graphene and silicon dioxide, and why graphite conducts while diamond does not.
Group 1 alkali metals
GCSE Chemistry revision on Group 1 alkali metals: one outer electron, reactions with water and oxygen, and why reactivity increases down the group.
Group 7 halogens
GCSE Chemistry revision on Group 7 halogens: diatomic molecules, displacement reactions, colours, and why reactivity decreases down the group.
Group 0 noble gases
GCSE Chemistry revision on Group 0 noble gases: full outer shells, monatomic gases, low reactivity, and boiling points that increase down the group.
Transition metals
GCSE Chemistry revision on transition metals (Triple): coloured compounds, variable ions such as Fe²⁺ and Fe³⁺, catalysts, and comparison with Group 1 metals.
Mendeleev and the periodic table
GCSE Chemistry revision on Mendeleev and the periodic table: atomic number order, groups and periods, left gaps, and how electronic structure explains the modern table.
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More GCSE Chemistry
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Teacher-written GCSE Chemistry revision for Combined and Triple Science: atomic structure, bonding, the periodic table, acids, electrolysis, rates, organic chemistry, calculations and the atmosphere.
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