H2 Chemistry Notes: EXTENSION TOPICS, Topic 13 - Transition Elements
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Q: What does H2 Chemistry Notes: EXTENSION TOPICS, Topic 13 - Transition Elements cover?
A: Explore electronic configurations, variable oxidation states, ligand behaviour, colour, and catalysis for the transition elements extension topic.
Transition-metal chemistry blends electronic structure with observable properties such as coloured ions and catalytic behaviour.
This note highlights the examinable concepts for the 2026 syllabus.
Cross-reference the wider hub at https://eclatinstitute.sg/blog/h2-chemistry-notes
Status: SEAB H2 Chemistry (9476, first exam 2026) syllabus and Chemistry Data Booklet last checked 2026-01-13 (both PDFs last modified 2026-01-13).
1 Defining Transition Elements
Transition elements have partially filled d subshells in atoms or stable ions. Scandium and zinc
