history of the atom

Who discovered the electron

• Rutherford

• Thomson

• Millikan

• Dalton

Who accidently discovered radiation?

• Becquerel

• Millikan

• Chadwick

• Rutherford

Developed an atomic theory of matter.

• Chadwick

• Millikan

• Rutherford

• Dalton

Used cathode rays to experiment with atoms.

• Rutherford

• Dalton

• Thomson

• Millikan

The scientist that discovered a positive center of an atom.

• Millikan

• Rutherford

• Dalton

• Thomson

Tags

NGSS.HS-PS1-8

Used alpha particles to discover the nucleus

• Thomsan

• Becquerel

• Millikan

• Rutherford

Tags

NGSS.HS-PS1-8

Theory of the atom believed electrons orbited the nucleus

• Bohr

• Thomson

• Millikan

• Rutherford

This model of the atom described atoms as tiny spheres that could not be broken down into smaller pieces.

• Dalton's model of the atom
• The "Plum Pudding Model" of the atom
• The Nuclear Model
• The Bohr Model

Tags

NGSS.MS-PS1-1

What scientist is best known for his "Plum Pudding" model of the atom?

• J.J. Tomson
• Ernest Rutherford
• John Dalton
• Democritus

Tags

NGSS.MS-PS1-1

What Greek philosopher first spoke about the idea of an atom?

• Democritus
• Dalton
• Thompson
• Rutherford