Atomic Theory Flashcard

Front

What happens when an electron drops from a higher to a lower energy level?

Back

Emission of light occurs.

Front

Who conducted the Gold-Foil Experiment?

Back

Ernest Rutherford.

Front

What did Rutherford conclude about the atom?

Back

The atom has a nucleus with a positive charge.

Front

Which scientist proposed the solid sphere model of the atom?

Back

John Dalton.

Front

Who discovered the neutron?

Back

James Chadwick.

Front

What is the main component of an atom's nucleus?

Back

Protons and neutrons.

Front

What charge do protons carry?

Back

Positive charge.

Front

What is the charge of electrons?

Back

Negative charge.

Front

What is the atomic model proposed by Niels Bohr?

Back

Electrons orbit the nucleus in defined paths.

Front

What is the significance of the Gold-Foil Experiment?

Back

It led to the discovery of the atomic nucleus.