Rutherford's Experiment and Observations

Q.

Which metal foil was used by Rutherford in the alpha ray scattering experiment?

1. Gold

2. Magnesium

3. Silver

4. Sodium

Q. Why did Rutherford select a gold foil in his α–ray
scattering experiment?

Q.

Which metal was used by Rutherford in making thin foils?

Q. Rutherford's $\alpha$ - 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?

1. A and C
2. B and D
3. A and D
4. C and D

Q. Malleability is the ability of a metal to be beaten into thin sheets. Explain.

Q. Which amongst the following metal foils was used in alpha ray scattering experiment?

1. Gold
2. Silver
3. Aluminium
4. Platinum

Q.

Rutherford selected gold for alpha particle scattering experiment because
(i) Gold was cheaper and brittle.
(ii) Gold can be easily hammered into a thin layer of 1000 atoms without breaking it.
(iii) Gold does not chemically react with alpha particle.

1. Gold was cheaper and brittle

2. Gold does not chemically react with alpha particle.

3. Gold can be easily hammered into a thin layer of 1000 atoms without breaking it.

4. Gold can be easily hammered into a thin layer of 1000 atoms without breaking it and also does not chemically react with alpha particle.

Q.

Identify the conclusions from the Rutherford's alpha ray scattering experiment.

1. The center of the atom is empty.

2. Most of the atom is empty.

3. The center of atom has negative charge.

4. Atomic mass is spread over the whole atom.

Q.

One of the conclusions of Rutherford's alpha particle scattering experiment is that-

1. the center of the atom is empty.

2. most part of the atom is empty.

3. the center of atom is negatively charge.

4. the atomic mass is spread over the whole atom.

Q.

Foils made of ___ was used in alpha-ray scattering experiments by Rutherford.

Q. A beam of alpha-particles is bombarded at a piece of gold foil as shown in the figure below.

After striking the gold foil, in which direction do most of the alpha-particles travel?

1. P
2. Q
3. R
4. S