Atomic Theory Flashcard

Front

The atom is mostly large empty space with a small, dense nucleus at the center

Back

Rutherford

Front

Atom is a positively charged cloud with embedded negative electrons

Back

Thomson

Front

Atoms are indivisible (cannot be broken down)

Back

Dalton

Front

What scientist proposed this atomic model? Options: Dalton, Thomson, Rutherford, Chadwick

Back

Chadwick

Front

What scientist proposed this atomic model? Options: Dalton, Thomson, Rutherford, Bohr

Back

Thomson

Front

What scientist proposed this atomic model? Options: Dalton, Thomson, Rutherford, Bohr

Back

Dalton

Front

Conclusion from Rutherford's gold foil experiment?

Back

The nucleus is very small and the atom is mostly empty space

Front

This particle is found in the nucleus and has no charge.

Back

Neutron

Front

This particle is found in the nucleus and has a positive charge.

Back

Proton

Front

Negatively charged particle found outside the nucleus

Back

Electron