5
QuizMultiple Choice

The Historical Development of Atomic Theory

Question 5 • SVHS Chemistry 1 $FA

Which statement is most likely true?

Answer
A
Ernest Rutherford’s experiment led to the nuclear model of the atom.
B
Ernest Rutherford’s experiment established the plum pudding model of the atom.
C
Robert Millikan’s postulates form the most accepted theory for the atomic structure.
D
Robert Millikan’s results had little impact on determining of the charge of an electron.

Explanation

Rutherford’s gold-foil experiment showed that most alpha particles passed through the foil, while a few were sharply deflected. This evidence led to the nuclear model: atoms are mostly empty space with a small, dense, positively charged nucleus. The experiment did not establish the plum pudding model, and Millikan’s oil-drop experiment was important for measuring the electron’s charge.

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