Confirmations & Flaws

Whose idea did John Dalton support? What was the idea?

• J.J. Thomson: idea that electrons made up atoms

• Erwin Schrodinger: idea that electrons move in waves

• Werner Heisenberg: idea of the Uncertainty Principle

• Democritus: idea that everything is made of atoms

Who changed Rutherford's atomic model?

• Niels Bohr

• J.J. Thomson

• Robert Millikan

• James Maxwell

Which scientist proved Einstein's theory about the Photoelectric Effect?

• Louis de Broglie

• Ernest Rutherford

• Robert Millikan

• William Crookes

Who paved the way for the discovery of Quantum Mechanics? Who discovered Quantum Mechanics?

• William Crookes; Werner Heisenberg

• James Maxwell; Werner Heisenberg

• Erwin Schrodinger; Louis de Broglie

• Erwin Schrodinger; James Maxwell

Who was one scientist who used Crooke's Tube?

• James Maxwell

• Niels Bohr

• J.J. Thomson

• Ernest Rutherford

Rutherford proved Thomson's idea wrong

• TRUE

• FALSE

Disagreeing with Bohr, who said that electrons move in waves around the nucleus?

• John Dalton

• Democritus

• J.J. Thomson

• Erwin Schrodinger

Select the scientists who didn't agree with Bohr's idea that electrons move in fixed paths

• John Dalton

• Werner Heisenberg

• Erwin Schrodinger

• Robert Millikan

• Louis de Broglie

Who came up with the initial idea of an atom?

• Democritus

• J.J. Thomson

• James Maxwell

• Robert Millikan

Who stated that electrons only have certain possible wavelengths, frequencies, and energies?

• Erwin Schrodinger

• Louis de Broglie

• James Maxwell

• Democritus