Some Alpha Particles Fired at a Gold Foil Bounced Backward

question 30

Multiple Choice

Some alpha particles fired at a gold foil bounced backward as a result of

• A)reflection from the surfaces of gold atoms.
• B)electrostatic repulsion by gold nuclei.
• C)electrostatic repulsion by electrons within gold atoms.
• D)all of the above
• E)none of the above

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