Which electron shell has the lowest energy?
A neutral atom has the same number of electrons as its atomic number.
The first shell holds up to 2 electrons.
The shell closest to the nucleus has the lowest energy.
The number of occupied shells gives the element's period.
Flashcards for AQA GCSE Chemistry 1.1.7 Electronic structure, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 22 cards, matched to the AQA GCSE Chemistry (8462) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.