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Question

Rutherford's α - particle scattering experiment showed that
A. Electrons have a negative charge.
B. The mass and the positive charge of the atom are concentrated in the nucleus.
C. Neutron exists in the nucleus.
D. Most of the space in the atom is empty.

Which of the above statements is/ are correct?

A
A and C
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B
B and D
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C
A and D
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D
C and D
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Solution

The correct option is B B and D

Following are Rutherford’s conclusions from the α-particle scattering experiment–

(i) Most of the space inside the atom is empty because most of the α-particles passed through the gold foil without getting deflected.

(ii) Very few particles were deflected from their path, indicating that the positive charge of the atom occupies very little space.

(iii) A very small fraction of α-particles was deflected by 1800,indicating that almost all the positive charge and mass of the gold atom was concentrated in a very small volume within the atom.

Both electron's charge and the presence of neutrons are not observed during the experiment.


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