Atomic Models Quiz

Who was the first person to "think" of an atom?

• Democritus

• J.J. Thompson

• Rutherford

• Bohr

Which one of these is Dalton's Model?

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Which model was created after the discovery of the nucleus?

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Who discovered electrons?

• Rutherford

• Bohr

• J.J. Thompson

• Democritus

Who discovered the neutron?

• J.J Thomson

• Ernest Rutherford

• Neils Bohr

• James Chadwick

Ernest Rutherford discovered that the atom was mostly _________________ and has a _______________ charged nucleus.

• empty space, positively
• empty space, negatively
• full of protons, positively
• full of neutrons, negatively

What experiment was used to discover the nucleus?

• Cathode Ray Tube

• Gold Foil

• Chromatography

• Gel Electrophorese

Proposed that electrons move around the nucleus in specific layers, or shells.

• Bohr

• Rutherford

• Chadwick

• Thomson

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This picture best represents ___________________ atomic model.

• Thomson's

• Dalton's

• Bohr's

• Chadwick's

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What did Erwin Schrodinger do to help with atomic theory?

• He developed the Electron Cloud Model.

• Made the Bohr Model.

• Discovered the Protons.

• None of these choices

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