Atomic Theory Flashcardiz

Front

Which subatomic particles are missing from Dalton's model?

Back

All of the subatomic particles are missing.

Front

Which subatomic particle did JJ. Thomson discover?

Back

Electron

Front

What did Bohr's atomic theory model look like?

Back

Electrons orbiting the nucleus like the planets around the sun.

Front

What does the cloud model look like in atomic theory?

Back

A cloud of electrons floating around the nucleus.

Front

What did Rutherford discover about atoms?

Back

An atom is mostly empty space, but has a dense positively charged center (nucleus).

Front

Which scientist discovered the electron and proposed the model above (which looks like a chocolate chip cookie)?

Back

Thomson

Front

Which scientist discovered the nucleus from his gold foil experiment?

Back

Rutherford

Front

Which scientist developed this model?

Back

Bohr

Front

What did John Dalton state?

Back

Elements are made of atoms, atoms of a given element are identical, atoms cannot be subdivided, created, nor destroyed.

Front

Who stated that "Everything is composed of atoms"? Options: Democritis, Dalton, Moseley, Einstein

Back

Democritis