Atomic Models

Proposed that electrons move around the nucleus in specific paths a fixed distance from the nucleus..

• Bohr

• Rutherford

• Chadwick

• Thomson

Tags

NGSS.HS-PS1-1

Which of the following is/are conclusions based on Rutherford’s gold foil experiment?

• Atom is mostly empty space

• The nucleus is positively charged

• The atom has a small dense nucleus

• All answers are correct

Which model was created after the discovery of the nucleus?

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Tags

NGSS.HS-PS1-8

Which model was created after the discovery of the electron cloud?

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Who discovered electrons?

• Rutherford

• Bohr

• J.J. Thompson

• Democritus

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

Tags

NGSS.HS-PS1-8

Which experiment was performed by J. J. Thomson in 1897?

• Oil Drop Experiment
• Gold Foil Experiment
• Wave  Experiment
• Cathode Ray Experiment

Which subatomic particle was discovered as a result of the cathode ray experiment?

• proton
• neutron
• electron
• nucleus

Tags

NGSS.MS-PS1-1

Who performed the Gold Foil Experiment?

• J. J. Thomson
• Ernest Rutherford
• Neils Bohr
• John Dalton

Which model was proposed by Neils Bohr?

• Planetary Model
• Plum Pudding Model
• Quantum Mechanical Model
• Solid Ball Model