Flashcard History of the Atom

Front

Who proposed a model with electrons moving in specific layers?

Back

Bohr

Front

Who discovered the electron?

Back

Thomson

Front

In which model are atoms imagined as tiny balls?

Back

Dalton

Front

What does atom mean?

Back

indivisible

Front

What did Rutherford discover in his experiment?

Back

nucleus

Front

What is Dalton's Atomic Theory?

Back

All matter is made of atoms, which are indivisible and indestructible.

Front

What did Thomson's Plum Pudding Model propose?

Back

Atoms are made of a positively charged 'soup' with negatively charged electrons embedded in it.

Front

What is the significance of Rutherford's Gold Foil Experiment?

Back

It led to the discovery of the nucleus and the realization that atoms are mostly empty space.

Front

What are protons?

Back

Positively charged particles found in the nucleus of an atom.

Front

What are neutrons?

Back

Neutral particles found in the nucleus of an atom.