Models of the Atom Review

Front

Whose model suggested that negative particles were mixed in with positively charged material - like seeds in a watermelon?

Back

J.J. Thomson

Front

Who discovered that the atom had a small, dense, positively charged center?

Back

Ernest Rutherford

Front

Place the following atomic models in order, from earliest to latest: A) Rutherford B) Thomson C) Dalton

Back

C, B, A

Front

What can you conclude from the fact that scientists continue to update the atomic model?

Back

New information about atoms continues to be discovered

Front

Who named the positive center of the atom the "nucleus?"

Back

Rutherford

Front

Which scientist believed that elements differed from one another because their atoms had different mass?

Back

Dalton

Front

Which scientist proposed a new atomic model after discovering the electron in 1897?

Back

Thomson

Front

Where are electrons of an atom found? Options: Nucleus, Electron Cloud, Some are in the nucleus and some in the electron cloud., They are moving everywhere.

Back

Electron Cloud

Front

Which of the following is a positively charged particle found in the nucleus of an atom?
Options:
Electron,
Proton,
Neutron,
Quark

Back

Proton

Front

Which particle carries no charge?

Back

Neutrons