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The three subatomic particles

The three subatomic particles

Atoms contain protons, neutrons and electrons. Protons and neutrons are found in the nucleus, while electrons occupy shells around the nucleus.

1.2.3 Subatomic particles in atoms and ions Lesson

  1. GCSE
  2. /Chemistry
  3. /1.2.3 Subatomic particles in atoms and ions

Step-by-step lessons on OCR GCSE Chemistry 1.2.3 Subatomic particles in atoms and ions. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

Lessons