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12 questions from this quiz
Tiny spheres that cannot be divided
1897
Ball of positive charge with negative electrons in it
Gold foil
Positive
They passed straight through
They are mainly empty space
Centre has great mass
Energy levels or shells
James Chadwick
0.10.10.1 nm (1×10−101 \times 10^{-10}1×10−10 m)
-1
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