What electron-shell state makes atoms most stable?
A half-full outer shell of electrons.
A full innermost shell of electrons.
A full outer shell of electrons.
A single outer shell of electrons.
Flashcards for CIE IGCSE Chemistry Ions and ionic bonds, covering the key terms, formulae and methods you need to recall for Paper 1 and Paper 3 (Core) or Paper 2 and Paper 4 (Extended), plus Paper 5 or Paper 6. 22 cards, matched to the CIE IGCSE Chemistry (0620) specification.