6.3 History of Atomic Theory

Front

What did Rutherford's gold foil experiment demonstrate?

Back

There is a dense positively charged nucleus at the center of an atom.

Front

What is the charge and location of neutrons?

Back

Neutrons have no charge and are found inside the nucleus of the atom.

Front

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

Back

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

Front

In the chocolate chip cookie model, what does the 'dough' represent?

Back

The 'dough' was thought to have a positive charge.

Front

What is the charge and location of electrons?

Back

Electrons are negatively charged, found outside the nucleus of the atom, and attract protons found in the nucleus.

Front

What is the atomic theory?

Back

A scientific theory that describes the nature of matter, stating that all matter is composed of atoms.

Front

Who proposed the first modern atomic theory?

Back

John Dalton.

Front

What are the three main subatomic particles?

Back

Protons, neutrons, and electrons.

Front

What charge do protons carry?

Back

Protons carry a positive charge.

Front

Where are protons located in an atom?

Back

Protons are found inside the nucleus of the atom.