Which philosopher is credited with developing the idea of the atom (atomos)?

• Aristotle

• Democritus

• Thales

• Anaximander

What was the major limitation of JJ Thomson's "Plum Pudding" model of the atom?

• No charged particles

• No electrons

• No nucleus

• No evidence to support presence of electrons

Who discovered the electron?

• John Dalton

• Ernest Rutherford

• Neils Bohr

• JJ Thomson

Who discovered the nucleus after conducting the famous Gold Foil experiment?

• Ernest Rutherford

• Neils Bohr

• JJ Thomson

• John Dalton

Tags

NGSS.HS-PS1-8

Who developed the solid-sphere model of the atom?

• JJ Thomson

• Ernest Rutherford

• Neils Bohr

• John Dalton

Who developed an atomic model that had electrons jumping between energy levels?

• JJ Thomson

• Ernest Rutherford

• Neils Bohr

• Heisenberg and Schrodinger

Which scientist developed the Atomic Theory of Matter

• JJ Thomson

• Ernest Rutherford

• John Dalton

• Neils Bohr

Who developed the cloud model of the atom?

• Ernest Rutherford

• John Dalton

• Neils Bohr

• Heisenberg and Schrodinger

The Cathode Ray Tube experiment led to this model that was developed by ___.

• JJ Thomson

• John Dalton

• Ernest Rutherford

• Democritus

Protons have what type of charge?

• Positive

• Negative

• Neutral