StJ AQA Chemistry Revision: Lesson 2

How did Rutherford discover the proton?

• Cathode tube ray experiment

• Planetary model

• Gold foil experiment

• Plum pudding model

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

• J.J. Thomson

• Ernest Rutherford

• John Dalton

• Democritus

Rutherford's gold foil experiment provided evidence that...

• negative and positive charges are spread out evenly throughout the atom

• Gold is not as dense as previously thought

• Alpha particles have a positive charge

• There is a dense positively charges nucleus at the centre of an atom

Who came up with this model of an atom? (Hint: complete with neutron)

• J.J Thompson

• Ernest Rutherford

• Neils Bohr

• James Chadwick

Which scientist proposed a model of the atom in which the electrons are orbiting at different levels?

• Niels Bohr

• James Chadwick

• John Dalton

• Ernest Rutherford

Which scientist proposed a model of the atom in which the individual atoms were thought of as tiny solids like balls or marbles?

• James Chadwick

• Ernest Rutherford

• John Dalton

• J.J. Thomson

Whose model of an atom is this?

• John Dalton

• Ernest Rutherford

• Niels Bohr

• J.J. Thomson

What do we call the most modern model of the atom after additional works from Schrodinger and Heisenburg?

• Planetary model

• Plum pudding model

• Quantum mechanical model

• Bowling ball model

Who discovered the electron as a result of his cathode ray tube experiments which helped him to develop his atomic model?

• John Dalton

• Niels Bohr

• Ernest Rutherford

• J.J. Thomson

Place the following scientists in order, from earliest to latest:

a) Ernest Rutherford

b) J.J. Thomson

c) John Dalton

• B,C,A

• A,B,C

• C,A,B

• C,B,A