Atomic Theory

Front

What does the nucleus of an atom contain?

Back

Protons and neutrons.

Front

Who stated that atoms cannot be divided?

Back

Dalton.

Front

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

Back

Bohr.

Front

Who discovered the nucleus using the gold foil experiment?

Back

Ernest Rutherford.

Front

His atomic model was depicted similar to a planetary/solar system. Who is he?

Back

Niels Bohr.

Front

What is the smallest unit of an element that retains the properties of that element?

Back

Atom.

Front

What are the three main subatomic particles of an atom?

Back

Protons, neutrons, and electrons.

Front

What charge do protons carry?

Back

Positive charge.

Front

What charge do electrons carry?

Back

Negative charge.

Front

What is the center of an atom called?

Back

Nucleus.