S1IB Chemistry
Models of the Particulate Nature of Matter
Atoms, electrons, moles, and gases - the foundations of Chemistry.
- Structure 1
- 5 topics
- SL and HL
- TOPIC 1.1Particulate Nature
Elements, compounds, mixtures, KMT, and temperature.
- TOPIC 1.2The Nuclear Atom
Protons, neutrons, electrons, isotopes, mass spectrometry.
- TOPIC 1.3Electron Configurations
Spectra, energy levels, orbitals, Aufbau, ionization energy.
- TOPIC 1.4Stoichiometry (The Mole)
Moles, reacting masses, formulas, solutions, gas volumes.
- TOPIC 1.5Ideal Gases
Gas assumptions, real gas deviations, PV = nRT.
Exam Practice
Exam-style questions with mark schemes, examiner tips, and cross-topic links. Each page covers MCQs, data analysis and structured questions.
1.1 Particulate Nature
13 questions · MCQs, data analysis & structured
1.2 The Nuclear Atom HL
11 questions · Includes mass spectrometry & fragmentation
1.3 Electron Configurations HL
12 questions · Includes convergence limit & successive IEs
1.4 Counting Particles (The Mole)
10 questions · Stoichiometry, titrations & yield
1.5 Ideal Gases
10 questions · Gas laws, stoichiometry & real vs ideal
Study this topic on the go
Get active recall flashcards, notes, and topic quizzes in ChemEasy, or build your revision schedule with ChemPlan IB.