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Cambridge IGCSE Chemistry (0620)
1. States of matter
2. Atoms, elements and compounds
2.1 Elements, compounds and mixtures
2.2 Atomic structure and the Periodic Table
2.2.1—Structure of the atom as a central
2.2.2—Relative charges and relative masses
2.2.3—Proton number/atomic number as the
2.2.4—Mass number/nucleon number as the
2.2.5—Electronic configuration of elements
2.2.6—Periodic table shell rules: (a) Group
2.3 Isotopes
2.4 Ions and ionic bonds
2.5 Simple molecules and covalent bonds
2.6 Giant covalent structures
2.7 Metallic bonding
3. Stoichiometry
4. Electrochemistry
5. Chemical energetics
6. Chemical reactions
7. Acids, bases and salts
8. The Periodic Table
9. Metals
10. Chemistry of the environment
11. Organic chemistry
12. Experimental techniques and chemical analysis
13. Assessed scientific skills
IGCSE/CAIE/Chemistry//Concept/2. Atoms, elements and compounds/2.2 Atomic structure and the Periodic Table/2.2.3—Proton number/atomic number as the

2. Atoms, elements and compounds

Syllabus
0620–2026–2027
Section
2
Level
—

Exam analysis

Most tested topics

  1. Elements, compounds and mixtures
  2. Atomic structure and the Periodic Table
  3. Isotopes
  4. Ions and ionic bonds
  5. Simple molecules and covalent bonds
  6. Giant covalent structures
  7. Metallic bonding