Chem Final Part 1

The following atomic model is attributed to which scientist?

• Bohr

• Rutherford

• Thomson

• Democratus

Which philosopher said everything is made of an indivisible atom

• Democratus

• Bohr

• Thomson

• Rutherford

How is the Bohr model different from the Rutherford model?

• Electrons are in the center

• Bohr has negative particles floating while Rutherford has them on rings

• Rutherford has negative particles floating while Bohr has them on rings

• Bohr has them electrons in the center and Rutherford has them on the outside

Who performed the Gold Foil Experiment?

• Democratus

• Thomson

• Rutherford

• Bohr

Tags

NGSS.HS-PS1-8

What did the Gold Foil Experiment show?

• The atom is mostly empty space

• There is a small positive center

• The whole atom is positive

• Both A and B

Tags

NGSS.HS-PS1-8

What is true about the center of an atom according to the Gold Foil Experiment?

• It has an overall negative charge

• It has an overall positive charge

• It is very large

• None of the above is true about the center of an atom

Tags

NGSS.HS-PS1-8

Discovered the electron

• J J thomson
• Dalton
• Chadwick
• Rutherford

Created a model of the atom with electrons moving around the nucleus in fixed orbits

• Bohr
• Dalton
• Heisenberg
• J J thomson

Discovered that the atom is mostly empty space

• Rutherford
• Dalton
• Democritus
• J J Thomson

Used the cathode ray tube in his discovery

• J J thompson
• Dalton
• Chadwick
• Democritus