Rutherford scattering experiment

What did Rutherford's nuclear model of atom propose in 1911?

• The majority of the mass of an atom is concentrated in a small, positively charged nucleus at the center.
• Atoms are made up of small, indivisible particles called protons and electrons.
• Electrons orbit the nucleus in a fixed path.
• Atoms are mostly empty space.

What was the experiment that led to Rutherford's nuclear model of the atom?

• Gold foil experiment

• Oil drop experiment

• Photoelectric effect

• Compton scattering

What was the source of alpha particles in Rutherford's scattering experiment?

• A radioactive decay.

• A battery.

• A generator.

• A light bulb.

What type of particles did Rutherford use in his scattering experiment?

• Alpha particles
• Gamma particles
• Beta particles
• Neutrons

What was the purpose of Rutherford's gold foil experiment?

• To investigate the structure of the atom
• To discover a new particle
• To measure the speed of light
• To study the properties of gold

What was the unexpected result of Rutherford's gold foil experiment?

• Most alpha particles passed straight through the foil, but some were deflected at large angles
• All alpha particles were absorbed by the foil
• All alpha particles were deflected at small angles
• Alpha particles only interacted with the surface of the foil

How did Rutherford's nuclear model of the atom differ from the previous plum pudding model?

• Rutherford's model proposed a small, positively charged nucleus at the center of the atom, while the plum pudding model suggested a uniform distribution of positive charge.

• Rutherford's model included electrons orbiting the nucleus, while the plum pudding model did not have a defined nucleus.

• Rutherford's model suggested that atoms are mostly empty space, while the plum pudding model proposed a solid structure.

• Rutherford's model introduced the concept of isotopes, which was not part of the plum pudding model.

Negatively charged particles called electrons ​ (a)   around the nucleus. The total negative charged on all the electron is ​ (b)   to the positive charge on the nucleus. As the opposite charges are ​ (c)   the atom is electrically ​ (d)   .

• revolve
• equal
• balanced
• neutral
• opposite