Atomic Theory

Front

Who discovered the nucleus using the gold foil experiment?

Back

Ernest Rutherford

Front

Who discovered the electron using the cathode ray tube experiment?

Back

Joseph Thomson

Front

Who stated that atoms cannot be created or destroyed?

Back

John Dalton

Front

In an atom, electrons move in definite orbits around the nucleus. Who proposed this model?

Back

Niels Bohr

Front

What scientist is best known for his 'Plum Pudding' model of the atom?

Back

J.J. Thomson

Front

What is the basic unit of matter?

Back

Atom

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons

Front

What charge does a proton have?

Back

Positive charge

Front

What charge does an electron have?

Back

Negative charge

Front

What is the center of an atom called?

Back

Nucleus