3.1
The Periodic Table
From the architecture of elements to transition metal colour theory.
SL & HL CORE
3.1.1 Architecture of the Periodic Table
Groups, periods, blocks, metals vs non-metals.
→3.1.2 Periodic Trends
Atomic radius, ionic radius, IE, electronegativity.
→3.1.3 Period 3 Oxides
Basic → amphoteric → acidic character shift.
→HL EXTENSION
3.1.4 Advanced Trends & Discontinuities
IE anomalies as evidence for sub-shells.
→3.1.5 Transition Elements
d-block definition, variable oxidation, catalysis, magnetism.
→3.1.6 IE Anomalies
Why Be→B and N→O break the IE trend in Period 2.
→S3.1.7 IE Discontinuities
Period 3 anomalies: Mg→Al and P→S explained by sub-shells.
→S3.1.8 Transition Element Properties
Variable oxidation states, catalysis, and magnetic properties.
→S3.1.9 Complex Ions
Ligands, coordination number, IUPAC naming, and geometric shapes.
→S3.1.10 Coloured Complexes
d-orbital splitting, crystal field theory, and the colour wheel.
→Flashcards
Review key definitions and concepts with interactive flashcards.