3A History of the Atom Assignment

Which scientist developed the “plum pudding” model where electrons are spread through the atom randomly?

• Thomson

• Dalton

• Chadwick

• Schrodinger

Which scientist said that most of an atom's mass is concentrated in the nucleus, and the rest is mostly empty space?

• Rutherford

• Thomson

• Chadwick

• Dalton

Who determined the mass to charge ratio of an electron?

• Rutherford

• Thomson

• Chadwick

• Millikan

Which scientist first concluded that electrons orbit around the nucleus?

• Rutherford

• Dalton

• Thomson

• Schrodinger

Which scientist developed the planetary model?

• Bohr

• Thomson

• Dalton

• Schrodinger

Which scientist discovered the neutron, a neutral particle located in an atom's nucleus?

• Chadwick

• Rutherford

• Schrodinger

• Bohr

Which scientist's model is shown?

• Dalton

• Schrodinger

• Chadwick

• Bohr

Which scientist's model is shown?

• Thomson

• Bohr

• Chadwick

• Schrodinger

What was the name of J.J Thomsons' model of atomic structure. 

• Electron Cloud Model 
• Electron Sea Model
• Plum Pudding Model 
• Bohr Model

The word 'atomos' termed by Democritus means:

• Indivisible
• Unconscious
• Blue
• Nuclear powered