This diagram covers Electron Shells and Electronic Configuration within Electronic Configuration for GCSE Chemistry. Revise Electronic Configuration in Atomic Structure for GCSE Chemistry with 24 exam-style questions and 24 flashcards. Use this page as part of a wider topic revision path rather than treating it as an isolated fact. It is section 2 of 12 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
📊 Electron Shells and Electronic Configuration
KEY PATTERN: Electrons fill the innermost shells first. The electronic configuration tells you exactly how the electrons are arranged — crucial for predicting chemical behaviour!
Practice questions for Electronic Configuration
What is the maximum number of electrons the first electron shell can hold?
Explain why noble gases are unreactive.