Module 3: Periodic table and energy
Periodicity (3.1.1)
9 min read
The periodic table, including trends in ionisation energy, and physical and chemical properties across the periods.
Group 2 (3.1.2)
6 min read
Electron configuration, reactivity, physical properties and uses of group 2 compounds.
The halogens (3.1.3)
6 min read
Physical and chemical properties, and reactions of group 7 elements, the halogens.
Qualitative analysis for AS level (3.1.4)
2 min read
An overview of the tests for sulfates, carbonates, halides, and ammonium ions
Enthalpy changes (3.2.1)
7 min read
Enthalpy changes in exothermic and endothermic reactions, measuring enthalpy changes experimentally, and using standard enthalpy changes.
Reaction rates (3.2.2)
8 min read
Understanding rates of reaction qualitatively, with reference to collision theory, activation energy and the Boltzmann distribution
Chemical equilibrium (3.2.3)
4 min read
Dynamic equilibrium, the qualitative effect of changing conditions on the position of equilibrium and the equilibrium constant, Kc.