Diagram pack
Atoms and Particles
Protons, neutrons, electrons — the particle map behind every formula you write.
Atoms combine particles with defined charges.
Content quality
Content quality
- Quality
- School-ready
- Review
- Review approved
- Age suitability
- Lower secondary
- Safety
- Safe for guided learning
- License
- Original content
Simplified educational model. For learning and practice only — not professional-grade medical, engineering, or electrical documentation.
Last reviewed: 5/1/2026 · Next: Review before embedding external OER figures.
- Simplified educational model. For learning and practice only — not professional-grade medical, engineering, or electrical documentation.
Curriculum alignment
Aligned for classroom support — not official national syllabus certification.
Cameroon · O Level · Chemistry · Atoms and particles · GCE O Level
Cameroon · Anglophone / Francophone schools
O Level · Chemistry · Atoms and particles · GCE O Level
Mapped to common school topics — aligned for classroom support, not official syllabus certification.
International · General STEM
O Level · Chemistry · Atoms and particles
Global STEM foundation support for diagrams and practice.
What you will understand
Atoms combine particles with defined charges.
What you will draw
Nucleus plus electron shells.
What you will write
Proton, neutron, electron.
Where you will use it
Materials, medicines, and batteries.
Key vocabulary
- Proton
- Neutron
- Electron
- Nucleus
- Shell
Flow stages
- 1
Nucleus
Protons and neutrons.
- 2
Electron shells
Energy levels.
Drawing steps
Drawing steps
- Nucleus circle
- Electron rings
- Label charges
Application
Real-life application
- Why is neutral atom charge zero?
Common mistakes
Common mistakes to avoid
- Electrons inside nucleus