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Learning objective

Explain photon emission when electrons move to lower energy levels.

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Topic

Electromagnetic radiation and quantum phenomena

Subtopic

Energy levels and photon emission

Aqa A Level PhysicsParticles and radiation

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Quick explanation

Explain photon emission when electrons move to lower energy levels

  • This point belongs to Electromagnetic radiation and quantum phenomena, especially Energy levels and photon emission.
  • You need to be able to explain photon emission when electrons move to lower energy levels.
  • The key ideas to know are photon emission and energy level.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

photon emissionenergy level

Why it matters

This objective helps connect Energy levels and photon emission to exam-style questions, flashcards, and revision notes for Electromagnetic radiation and quantum phenomena.

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