How to get a 9 in GCSE Chemistry
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- Understand the terms: concentration, volume and mole;
- Know the difference between elements, molecules, particles and atoms;
- Know how to name organic molecules;
- Learn the flame tests for different ions;
- Learn the tests for different common gases (Oxygen, chlorine, carbon dioxide and hydrogen);
- Know how groups and periods affect reactivity, and why;
- Know what kind of bonding happens between different types of molecules (metal to metal: metallic, metal to nonmetal: ionic, nonmetal to nonmetal: covalent);
- Know the relative mass and charge of the three sub-atomic particles (that’s protons, neutrons and electrons);
- Know the difference between atomic number and atomic mass;
- Know what the groups and periods mean in a periodic table.