Unit 3 Review

Front

Rutherford used the gold foil experiment to prove the existence of what?

Back

nucleus

Front

Which scientist discovered the electron, which helped him develop a model of the atom?

Back

J.J Thompson

Front

Who came up with this model? Options: Dalton, Thomson, Rutherford, Bohr

Back

Rutherford

Front

Who is the scientist who proposed the "planetary" model of an atom where the electrons revolve around the nucleus in fixed orbits?

Back

Niels Bohr

Front

Who was the Greek philosopher who called the smallest particle of matter an "atom"?

Back

Democritus

Front

Who came up with this model of an atom?

Back

Neils Bohr

Front

Who's model is this? Options: Thomson, Rutherford, Democritus, Bohr

Back

Thomson

Front

Who said that atoms of the same element are identical?

Back

Dalton

Front

Which of the following is NOT a conclusion reached in Rutherford's experiment? Atoms are mostly empty space. Atoms have a dense center with a positive charge. The area surrounding the nucleus contains the electrons.

Back

All atoms are identical.

Front

Who discovered that atoms are mostly empty space?

Back

Rutherford