Scientist of the Atomic Theory

Front

What subatomic particle was discovered in the cathode ray tube experiment?

Back

Electron

Front

Who proposed that electrons orbit a nucleus in energy levels?

Back

Bohr

Front

What does Dalton's atomic theory state about atoms?

Back

Atoms are indivisible (cannot be broken down).

Front

Who is known for the plum pudding model of the atom?

Back

Thomson

Front

What did Rutherford's gold foil experiment demonstrate?

Back

The existence of a small, dense nucleus in the atom.

Front

Who first suggested the idea of the atom as a fundamental particle?

Back

Democritus

Front

What is the charge of an electron?

Back

Negative.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the nucleus of an atom composed of?

Back

Protons and neutrons.