This memory aid covers Memory Aids within Atomic Structure for GCSE Physics. Revise Atomic Structure in Atomic Structure for GCSE Physics with 16 exam-style questions and 25 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.
🧠 Memory Aids
Particles and charges: "ProTons are PosiTive" — both have the letter T. Neutrons are Neutral (no charge). Electrons are negative (they're on the outside, "ex" means out, and they're negative).
Atomic notation: "Big number on top = Mass (more letters = top), Small number below = atomic (Z = proton count)." Think: Z is at the bottom of the alphabet, and the atomic number is at the bottom of the symbol.
Neutrons formula: N = A − Z. Think "Neutrons Are (A) Zapped (minus Z)."
Practice questions for Atomic Structure
What does the atomic number of an element tell you?
Describe the structure of an atom. Include the location and charge of the three main subatomic particles.