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3 cards from this section. Quick, good the night before a test.
What are alpha particles made of?
They are the same as helium nuclei.
What was the primary material used in Rutherford's experiment?
Think of a shiny metal that can be made very thin.
What did most alpha particles do when shot through the gold foil?
Think about how easily something can go through empty space.
True or False: All alpha particles were deflected by the gold foil.
Recall the outcome of the experiment regarding the alpha particles.
Calculate the ratio of alpha particles passing through the foil to those that bounced back if 8000 were shot and 8 bounced back.
Use basic division to find the ratio.
Discuss how the gold foil experiment contradicted the plum pudding model of the atom.
Consider how defining a dense center contrasts with a uniformly spread charge.
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