AQA GCSE Chemistry
Periodic Table
Atoms, elements, compounds, formulae, equations and the foundations of chemistry.
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Top Tips
- Mendeleev was working before electrons, protons or neutrons, so had to arrange elements by atomic weight
- Elements now arranged by atomic (proton) number
- For group 1 and group 7 reactivity, always start with loss / gain of electrons, then atomic radius, electron shielding, attraction of electron to nucleus, effect on reactivity
Additional Resources
📘 Specification
AQA GCSE Chemistry: The Periodic Table
The official specification covering the organisation and development
of the Periodic Table, metals and non-metals, Group 0, Group 1,
Group 7 and trends in properties.
📝 Visual Summary
Cognito: The Periodic Table
A free illustrated summary covering groups and periods, Group 1,
Group 7, Group 0, transition metals and trends in reactivity
and physical properties.
⚛️ Electron Structure
Cognito: Atomic Structure & Electron Shells
A free visual guide to electron arrangements in the first 20 elements,
useful for linking an element's position in the Periodic Table to its
electronic structure and chemical properties.
🔬 Interactive
Royal Society of Chemistry: Periodic Table
Explore every element using the RSC's interactive Periodic Table,
including properties, uses, history, images, videos and trends
across the table.
🕰️ Explore Further
RSC: History of the Periodic Table
Explore how scientists developed ways of organising the elements
and how the modern Periodic Table emerged from earlier ideas,
including the work of Mendeleev.
🔥 Group 1
Seneca: Alkali Metals
Free interactive revision on lithium, sodium and potassium,
their reactions and the trend in reactivity down Group 1.
🧪 Group 7
Seneca: The Halogens
Free interactive revision covering the properties of the halogens,
their diatomic molecules, electron arrangements and the trend in
reactivity down Group 7.
💡 Group 0
Seneca: The Noble Gases
Free interactive revision covering the properties and uses of the
noble gases, their full outer electron shells and trends in physical
properties down Group 0.
🎨 Transition Metals
Seneca: Transition Metal Properties
Explore the distinctive chemistry of transition metals, including
ions with different charges, coloured compounds and their use as
catalysts.
🎲 Quiz
Generate a 10-question quiz on Periodic Table.
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⭐ Challenge
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