Chemistry Paper 1
Electronic structure
Atomic Structure and the Periodic Table training before the targeted original question drill.
Adaptive teaching card
Make it concrete
Analogy
Electronic structure is like changing a recipe: the particles, amounts and conditions decide what product you can make.
Why now: An analogy helps when the definition feels abstract.
Do this: Match each part of the analogy to the science idea.
Learn it
Electrons occupy shells around the nucleus.
The outer shell controls many chemical properties.
Elements in the same group have similar chemical properties.