WASSCE Chemistry · Foundations & Atomic Theory
Atomic Structure
Protons, neutrons, electrons, atomic number, mass number, isotopes, and relative atomic mass.
- lessons
- 2
- of study
- 17 min
- free to read
- 1
Across the topic: 7 sections · 5 worked examples · 5 diagrams

Topic content
Lessons in this topic
2 lessons · 17 min
- 1Inside the atom: particles, atomic number and isotopes8 minFree8 minFree
- Dalton's atomic theory
- Discovering the particles
- The structure of the atom
- Atomic number and mass number
- Isotopes
1 worked example · 2 diagrams
- 2Relative atomic mass and radioactivity9 min Plan9 min Plan
- Relative atomic mass
- Radioactivity
4 worked examples · 3 diagrams
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