2.1 Theories About The Atom Through Time (GCSE Chemistry)

The following is a GCSE Chemistry test covering '2.1 Theories About The Atom Through Time'

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The gold foil experiment indicated the presence of what atomic feature?

What happened to most of the alpha particles in Rutherford’s experiment?

What discovery caused scientists to discard Dalton`s model?

Who first proposed the idea of atoms as indivisible?

Why was the plum pudding model replaced?

What did JJ Thomson discover that led to changing ideas about the atom?

What did the plum pudding model view an atom as?

What theoretical particle did James Chadwick discover?

Why did early atomic concepts change significantly over time?

Why were alpha particles used in Rutherford`s experiment?

Why were Dalton’s atomic ideas proven incorrect over time?

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