3.2.2Inorganic chemistry
Group 2, the Alkaline Earth Metals
Trends down the group, reactions and solubility, flame tests and thermal decomposition.
- Year 1 (AS)
- 3 lessons
- Exam practice and flashcards
- LESSON 1Trends in Group 2 Properties
Trends in atomic radius, first ionisation energy, and melting point of Group 2 elements explained in terms of shielding and nuclear charge.
- LESSON 2Reactions and Solubility
Reactions of metals and oxides with water and acids, solubility trends of hydroxides and sulfates, and key uses like antacids.
- LESSON 3Flame Tests and Thermal Decomposition
Flame test colours of Group 2 cations, thermal decomposition trends of carbonates and nitrates, and polarisation theory.