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Structure18 min read

Models of the Particulate Nature of Matter

States of matter, the mole concept and the ideal gas law (Structure 1.1–1.5).

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Overview

States of matter, the mole concept and the ideal gas law (Structure 1.1–1.5). This section will hold the full written explanation for models of the particulate nature of matter, broken into short, scannable subsections with diagrams, worked examples and definitions where needed.

Key points

  • Core definitions and terminology for models of the particulate nature of matter.
  • Worked examples matching the IB exam style.
  • Common mistakes examiners flag most often for this topic.
  • A short recap summary for last-minute revision.

Practice

Pair this topic with past paper questions from the IB past papers section to check your understanding under exam conditions.