Chemistry GCSE

Energy levels and shells

What Energy levels and shells means in Chemistry GCSE, as defined for AQA.

Definition of Energy levels and shells

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Reference: AQA

The regions around the nucleus that electrons occupy, with the lowest available energy level being the innermost shell, closest to the nucleus.

AQA · Electronic structure (study guide)

Topics that use Energy levels and shells

Electronic structure (AQA GCSE)

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Using Energy levels and shells in the exam

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