S1.4.4 Percentage composition by mass

S2.4.1 / S2.4.2 The bonding triangle

S1.3.7 Successive ionisation energies (HL)

S1.2.3 Mass spectra of elements (HL)

S1.3.1 The Electromagnetic Spectrum

S1.3.3 / S1.3.4 Atomic orbitals and sub-levels

S1.3.5 Electron configurations and the Aufbau principle (part two)

S1.3.5 Electron configurations and the Aufbau principle (part one)

S1.2.2 Calculating relative atomic mass

S1.2.2 Isotopes

S1.3.2 The hydrogen emission spectrum

S1.2.1 Atomic number and mass number

R3.2.14 Cell potential and Gibbs free energy (HL)

R3.2.13 Calculating cell potential (HL)

R3.2.12 Standard electrode potentials (HL)

R3.1.16 Buffer solutions (HL)

R3.1.12 Salt hydrolysis (HL)

R3.1.11 Ka, pKa, Kb, pKb, Kw, pKw (HL)

S3.1.4 Properties of metals and non-metals

S3.1.1 The metalloids

R2.2.6 Intermediates and catalysts (HL)

R2.2.8 Molecularity (HL)

R2.2.13 Calculating activation energy (HL)

R2.2.11 The rate constant k (HL)

R2.2.12 The Arrhenius equation (HL)

R3.2.5 Comparison of electrochemical cells

R3.2.6 Voltaic cells

R3.2.1 Oxidizing and reducing agents

1.2 Mole fraction and mole percent

10.1 Naming amides (SL)