This memory aid covers Memory Aids within Electronic Configuration for GCSE Chemistry. Revise Electronic Configuration in Atomic Structure for GCSE Chemistry with 24 exam-style questions and 24 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 9 of 12 in this topic. Use it for quick recall, then test yourself straight afterwards so the memory aid becomes usable in an answer.
Topic position
Section 9 of 12
Practice
24 questions
Recall
24 flashcards
🧠 Memory Aids
Shell capacity: "2 then 8, 8, 8..." — The first shell is special with only 2. All subsequent shells (at GCSE) hold up to 8.
Periodic table link: "Group = Outer, Period = Shells" — Group number tells you how many electrons are on the outside; period number tells you how many shells are occupied.
Reactivity reminder: "1 outer = very reactive (Group 1), 7 outer = very reactive (Group 7), 8 outer = stable (Group 0)." The extreme groups are the most reactive; the noble gases are the most stable.