What do elements in the same group have in common about their outer-shell electrons?
They have the same number of outer-shell electrons.
Cambridge IGCSE (9–1) Chemistry 0971 (Extended) (2026–2028) · 8.1
Revise Cambridge IGCSE (9–1) Chemistry 0971 (Extended) (2026–2028) specification point 8.1, Arrangement of elements, with free active-recall flashcards. Flip through the set or review every question and answer below.
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What do elements in the same group have in common about their outer-shell electrons?
They have the same number of outer-shell electrons.
Why do elements in the same group tend to have similar chemical properties?
They have the same number of outer-shell electrons, which determine how atoms take part in chemical reactions.