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Cambridge IGCSE Chemistry (0620)

1. States of matter

2. Atoms, elements and compounds

3. Stoichiometry

4. Electrochemistry

5. Chemical energetics

6. Chemical reactions

7. Acids, bases and salts

8. The Periodic Table

10. Chemistry of the environment

11. Organic chemistry

12. Experimental techniques and chemical analysis

13. Assessed scientific skills

IGCSE/CAIE/Chemistry/Concept

2.2.3—Proton number/atomic number as the

Syllabus: 0620–2026–2027
Objective: 2.2.3
Level: —

2.2.3—Proton number/atomic number as the

Define proton number/atomic number as the number of protons in the nucleus of an atom

ConceptIGCSE Chemistry