Atoms and the Nuclear Atom Quiz

Who is credited with the discovery of the electron?

• J. J. Thomson

• Ernest Rutherford

• John Dalton

• Hans Geiger

What did J. J. Thomson call the small, negatively charged particles making up the cathode ray?

• Alpha particles

• Neutrons

• Protons

• Corpuscles

What was J. J. Thomson's model of the atom called?

• Nuclear model

• Planetary model

• Plum pudding model

• Bohr model

Who conducted the gold foil experiment that altered the plum pudding model of the atom?

• Ernest Rutherford

• J. J. Thomson

• John Dalton

• Hans Geiger

What did Rutherford's gold foil experiment reveal about the atom?

• Most of the atom is empty space

• The atom is a solid sphere

• The nucleus is made up of protons and neutrons

• The electrons are located in the nucleus

What is the central core of the atom called?

• Proton

• Electron cloud

• Nucleus

• Neutron

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What is the size of the nucleus compared to the rest of the atom?

• About the same

• Very small

• Infinite

• Very large

What force holds protons and neutrons together in the nucleus?

• Strong nuclear force

• Electromagnetic force

• Gravitational force

• Weak nuclear force

What did Rutherford's gold foil experiment involve?

• Bombarding gold foil with neutrons

• Bombarding gold foil with gamma rays

• Bombarding gold foil with beta particles

• Bombarding gold foil with alpha particles

What did Rutherford conclude about the atom's mass and charge distribution?

• The charge is concentrated in the nucleus

• The mass is concentrated in the nucleus

• The mass and charge are uniformly distributed

• Most of the atom is empty space