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1.1.4 Relative electrical charges of subatomic particles
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The three subatomic particles

The three subatomic particles

Atoms are made from protons, neutrons and electrons. Protons and neutrons are in the central nucleus, while electrons occupy energy levels around the nucleus.

1.1.4 Relative electrical charges of subatomic particles Lesson

  1. GCSE
  2. /Chemistry
  3. /1.1.4 Relative electrical charges of subatomic particles

Step-by-step lessons on AQA GCSE Chemistry 1.1.4 Relative electrical charges of subatomic particles. 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.

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