LESSON03_EVALUATE

All these were discovered because of the cathode ray tube, EXCEPT:

• Electrons

• Neutrons

• Protons

• X-rays

Which of the following statements describes the neutron?

• It is positively charged.

• It is part of alpha radiation.

• It was discovered by Neils Bohr.

• It is the lightest subatomic particle.

Which of the following phenomena did not occur in Rutherford’s experiment?

• All of the alpha particles were not deflected.

• Some alpha particles went back to the source.

• Some alpha particles did not pass through the foil.

• All of the above.

Which subatomic particle/s can be found at the central core of an atom?

• Neutron only

• Neutron and Proton

• Electron and Proton

• Electron and Neutron

He is one of the first atomists who believed that all things are made up of atoms?

• Dalton

• Democritus

• Bohr

• Rutherford

To which of the following locations does mass of an atom is concentrated?

• Center

• Outermost part

• Anywhere in the atom

• Cannot be determined

Which of the following experiments did Rutherford conduct in discovering the nucleus of an atom?

• Aluminum Foil Experiment

• Gamma Particle Experiment

• Gold Foil Experiment

• Silver Foil Experiment

Who among the scientists is regarded as the father of modern atomic theory?

• Ernest Rutherford

• J.J. Thomson

• John Dalton

• Neils Bohr

Who among the scientists is known for his discovery of planetary models?

• Ernest Rutherford

• J.J. Thomson

• John Dalton

• Neils Bohr

Who among the scientists is known for his discovery of the nuclear model?

• Ernest Rutherford

• J.J. Thomson

• John Dalton

• Neils Bohr