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Yr9 Matter: Atoms and the periodic table Flashcards | StudBud
Yr9 Matter: Atoms and the periodic table
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Niels Bohr developed a model sometimes called the 'onion model'. What was new about this model?
A
There were protons and neutrons in the nucleus
B
The atom was neutral
C
Electrons orbited the nucleus in energy levels or shells
D
The atom was made of mostly empty space
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