Question

In an alpha scattering experiment, few alpha particles rebounded because
a. Most of the space in the atom is occupied
b. Positive charge of the atoms very little space
c. The mass of the atom is concentrated in the centre
d. All the positive charge and mass of the atom is concentrated in small volume​

Answer 1

Answer:

d. All the positive charge and mass of the atom is concentrated in small volume​

Answer 2

In an alpha scattering experiment, few alpha particles rebounded because the positive charge of the atoms had very little space.

• In Raman's alpha particle scattering experiment he hit a gold wire with some alpha particles.
• He observed that almost all alpha particles pass through the wire and he concluded that most space in an atom is void.
• He also observed that few alpha particles rebounded from this he concluded that there is some positive charge in the centre of an atom which repels the positively charged alpha particles.
• Hence the correct option is b.

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