Defines oxidation states and the rules for assigning them using the OILRIG acronym.

Covers reactivity and physical trends in Groups 1 and 2, including the unique behavior of Magnesium.

Explains the trend in thermal stability for Group 1 and 2 carbonates and nitrates based on cation polarization.

Details flame test colors for identifying Group 1 and 2 ions and the chemical test for Ammonium.

Discusses the physical and chemical trends of halogens, including their oxidizing and reducing power.

Examines the reactions of halides with sulfuric acid to demonstrate their increasing reducing power.

Covers the disproportionation of chlorine and chemical tests for identifying halide ions using silver nitrate.

Summarizes how to use periodic trends and chemical tests to predict element behavior.