Why did Dalton's model of the atom as a solid sphere have to change?
A
Scientists discovered that atoms had different numbers of shells.
B
Scientists discovered subatomic particles (electrons) that could be removed from atoms.
C
Scientists discovered that atoms were made entirely of empty space.
D
Scientists discovered that atoms could be divided into different elements.
Atomic structure Flashcards
Flashcards for Edexcel GCSE Chemistry Atomic structure, covering the key terms, definitions and equations you need to recall for Paper 1 and Paper 2. 21 cards, matched to the Edexcel GCSE Chemistry (1CH0) specification. Recall questions account for roughly 40% of marks at GCSE Chemistry, so these target the marks you can secure before the paper starts.