Atomic Theory

Who discover the electron?

• Dalton

• Rutherford

• Thomson

• Bohr

What did Rutherford discover in his experiment?

• nucleus

• electrons

• neutrons

• protons

In which model are atoms imagined as tiny balls?

• Dalton

• Thomson

• Rutherford

• Bohr

Who proposed a model with electrons moving in specific layers?

• Dalton

• Rutherford

• Bohr

• Thomson

What does atom mean?

• small

• visible

• indivisible

• particle

Tags

NGSS.MS-PS1-1

Who is "responsible" for the 2000- year "Death of Chemistry?

• Aristotle

• Democritus

• Thomson

• Dalton

Rutherford's "gold-foil" experiment using alpha particle scattering concluded that

• the center of the atom is empty

• atomic mass is spread over the whole atom

• the center of the atom has a negative charge

• most of the atom is empty

Tags

NGSS.HS-PS1-8

In which model are atoms imagined as the solar system?

• Dalton

• Bohr

• Rutherford

• Cloud Model