The Development of Atomic Theory

Who ran the gold-foil experiment?

• Rutherford

• Thomson

• Democritus

• Dalton

This is an example of which model of the atom?

• Rutherford's Model

• Plum Pudding Model

• Atomic Model

• Bohr's Model

What experiment did J.J. Thomson run to develop his model of the atom?

• Gold-Foil Experiment

• Definite Proportion Experiment

• Cathode-Ray Tube Experiment

• No experimentation was done

Which of these had scientific evidence to back their models of the atom?

• Democritus

• John Dalton

• J.J. Thomson

• Ernest Rutherford

Who developed this model of the atom?

• Plum Pudding Model

• J.J. Thomson

• Proto-Electron Model

• Ernest Rutherford

Over what period of time did John Dalton do his experiments for his model?

• 1897-1903

• 1776-1787

• 1812-1815

• 1801-1810

Who is this a picture of?

• John Dalton

• Democritus

• Archimedes

• Ernest Rutherford

What does the word "atomos" mean?

• science is cool

• not reactive

• unable to be cut or divided

• small

When was Democritus born?

• 460 BCE

• 725

• 1897

• 1801

What did the cathode-ray tube experiment prove?

• Atoms could be broken into smaller parts

• Atoms caused the changes in matter

• Atoms join to create compounds

• The center of an atom has a nucleus

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