Atoms, Elements and Compounds
Past paper questions, key definitions, and mark schemes — all files verified from our archive.
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📝 Key Concepts & Definitions
- Element: substance made of only one type of atom
- Compound: substance made of two or more elements chemically combined
- Mixture: two or more substances not chemically combined
- Proton: positive charge, mass 1, in nucleus
- Neutron: no charge, mass 1, in nucleus
- Electron: negative charge, mass 1/1836, in shells
- Ionic bond: transfer of electrons between metal and non-metal
- Covalent bond: sharing of electrons between non-metals
+ more definitions available in the full revision notes
🃏 Flashcards
❓ Questions by Topic
✅ 13 verified PDF links — all files confirmed on server
📅 2022-2024 papers (1 available)
📅 2018-2021 papers (12 available)
- 📄 2021 Mar – P12 (QP P12)📝 MS
- 📄 2018 Nov – P31 (QP P31)📝 MS
- 📄 2020 Nov – P31 (QP P31)📝 MS
- 📄 2020 Jun – P31 (QP P31)📝 MS
- 📄 2018 Mar – P32 (QP P32)📝 MS
- 📄 2021 Nov – P32 (QP P32)📝 MS
- 📄 2020 Jun – P32 (QP P32)📝 MS
- 📄 2019 Jun – P32 (QP P32)📝 MS
- 📄 2019 Nov – P33 (QP P33)📝 MS
- 📄 2018 Jun – P41 (QP P41)📝 MS
- 📄 2020 Jun – P42 (QP P42)📝 MS
- 📄 2019 Mar – P42 (QP P42)📝 MS
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