Atomic Theory & Atomic Structure

Front

What is the value representing the number of protons in an element?

Back

Atomic Number

Front

What is the measure mainly of the nuclear particles: protons + neutrons?

Back

Atomic Mass

Front

Who discovered the nucleus of the atom through the Gold Foil Experiment?

Back

Rutherford

Front

Which scientist believed that atoms of the same element are identical to each other?

Back

Dalton

Front

Which particle does not contribute mass to the atom?

Back

Electron

Front

What are the three main subatomic particles?

Back

Protons, Neutrons, Electrons

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of a neutron?

Back

Neutral

Front

What is the charge of an electron?

Back

Negative

Front

What is the nucleus of an atom composed of?

Back

Protons and Neutrons