Atomic Theory

Front

What did Niels Bohr propose about the arrangement of electrons in an atom?

Back

Electrons are found in specific orbits.

Front

What experiment did Rutherford conduct to discover the proton?

Back

Gold Foil Experiment.

Front

What was John Dalton's key contribution to atomic theory?

Back

He discovered that every element consisted of one type of atom.

Front

What is the central region of an atom called?

Back

Nucleus.

Front

What does the term 'atom' mean in Greek?

Back

Indivisible.

Front

Who proposed the planetary model of the atom?

Back

Niels Bohr.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What charge does a proton carry?

Back

Positive charge.

Front

What is the mass of a neutron compared to a proton?

Back

Approximately the same.

Front

What is the significance of the Gold Foil Experiment?

Back

It led to the discovery of the atomic nucleus.