Welcome to Unit 1: Structure, Bonding and Introduction to Organic Chemistry – the essential first module in the Pearson Edexcel International AS Chemistry course. This unit lays the foundation for everything that follows in your chemistry journey. Through expertly crafted lessons, students will master chemical formulae, understand ionic and covalent bonding, and begin to decode the fascinating world of organic chemistry.

Topics Covered

  • Formulae, Equations, and Amount of Substance
  • Atomic Structure and the Periodic Table
  • Bonding and Molecular Structure
  • Introduction to Organic Chemistry and Alkanes
  • Alkenes and Reaction Mechanisms

Each topic includes animated video lessons, exam-board-style quizzes, and downloadable PDF summaries. Our resources are updated in line with the official Edexcel IAL Chemistry specification.

Learning Outcomes

  • Write and balance chemical equations with full ionic forms
  • Use Avogadro’s constant and perform mole calculations
  • Understand electron configurations and periodic trends
  • Predict molecular shapes using electron pair repulsion theory
  • Apply bonding models to real-world compounds
  • Start mastering organic mechanisms using curly arrow notation

Course Author

All AS Chemistry materials are developed by Dr. Mohammed Al-Fatah, a Royal Society of Chemistry Scholar and award-winning chemistry educator. Dr. Fatah holds a Master’s in Advanced Chemical Research, a BSc in Chemistry with First-Class Honours, a Bachelor of Dental Surgery, a PGCE, QTS, and an MA in Education from UCL. He has taught in elite UK schools and designed this system for maximum student impact.

Whether you're just starting or reviewing for exams, this category provides a complete launchpad for mastering AS Chemistry.

Build a strong foundation in organic chemistry by mastering key concepts from Topic 4A & 4B, including hazard awareness, risk assessment, homologous series, functional groups, and IUPAC nomenclature. Develop understanding of reaction types, bond breaking, and core definitions such as free radicals and electrophiles, before progressing to alkanes—covering structure, isomerism, combustion, environmental impact, and free radical substitution mechanisms.

Skill Level: Advanced

This course covers the structure, bonding and reactivity of alkenes, including geometric (E–Z) isomerism, electrophilic addition mechanisms, qualitative testing, oxidation, addition polymerisation and polymer waste management, fully aligned with the Pearson Edexcel IAL specification

Course Duration: 9 Hours of Guided Learning
Skill Level: Advanced