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Vera_Pavlovna [14]
3 years ago
6

Which of the following experimental observations proved that the idea of matter and mass being evenly distributed in an atom was

flawed?
A. Less than 1% of the alpha particles went un-deflected through the gold foil.
B. Less than 1% of the alpha particles were deflected by angles greater than 90°.
C. The beam from the negative electrode was deflected by electrically charged rods.
D. The beam from the negative electrode cast a shadow on the positive electrode.
Chemistry
2 answers:
Ksenya-84 [330]3 years ago
7 0

A. Less than 1% of the alpha particles went un-deflected through the gold foil.

nasty-shy [4]3 years ago
6 0

Answer:

B. Less than 1% of the alpha particles were deflected by angles greater than 90°.

Explanation:

In Rutherford’s gold foil experiment most of the alpha particles pass undeflected which proved that most of the atom is empty. Less than 1% of the alpha particles were deflected by angles greater than 90°. This proved that the entire mass of the atom is confined to a small space which is highly dense.

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