Rutherford Bombarded Gold Foil with Alpha () Particles and Found

question 90

Multiple Choice

Rutherford bombarded gold foil with alpha () particles and found that a small percentage of the particles were deflected. Which of the following was not accounted for by the model he proposed for the structure of atoms?

• A) the small size of the nucleus
• B) the charge on the nucleus
• C) the total mass of the atom
• D) the existence of protons
• E) the presence of electrons outside the nucleus

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