History of Atomic Models

Who proposed that electrons move around the nucleus in circular orbits?

• Dalton

• Thomson

• Rutherford

• Bohr

One important difference between Bohr's model and the modern on is that electrons in the modern model are

• moving in fixed orbits around the nucleus

• moving in an electron cloud

• moving in a random motion around the nucleus

• not moving

Who's model does this picture represent?

• Dalton: 1803-1808

• Thomson 1897

• Rutherford 1911

• Bohr 1913

Who's model does this picture represent?

• Dalton 1803-1808

• Rutherford 1911

• Thomson 1897

• modern atomic model 1920 to the present

Tags

NGSS.MS-PS1-1

Who's model does this represent?

• Dalton 1903-1808

• Rutherford 1911

• Thomson 1897

• Bohr 1913

Who's model does this picture represent?

• Dalton 1803-1808

• Rutherford 1911

• Bohr 1913

• modern model 1920 to the present

Who believed that electrons were scattered amongst positively charged material.

• JJ Thomson

• Ernest Rutherford

• John Dalton

• Niels Bohr

Who developed the plum pudding model of the atom?

• John Dalton

• J.J. Thomson

• Ernest Rutherford

• Niels Bohr

Which experiment led to the discovery of the nucleus?

• Gold foil experiment

• Cathode ray experiment

• Oil drop experiment

• Photoelectric effect

What was the main flaw in Rutherford's atomic model?

• It couldn't explain the stability of the atom

• It didn't include neutrons

• It didn't account for electron orbits

• It was too complex