Atomic Theory & Structure

Front

Who stated that atoms cannot be divided?

Back

Dalton

Front

What is the Planetary Model of the atom?

Back

A model created by Bohr that describes electrons moving in definite orbits around the nucleus.

Front

What did Bohr contribute to atomic theory?

Back

He proposed that electrons move in specific orbits around the nucleus.

Front

How did each model of the atom contribute to atomic theory?

Back

Each model built upon the other to show new particles or properties of previously discovered particles.

Front

What are subatomic particles with a negative charge?

Back

Electrons.

Front

What is Dalton's Atomic Theory?

Back

A theory that states that all matter is made of atoms, which are indivisible and indestructible.

Front

What did Thomson discover about the atom?

Back

He discovered the electron and proposed the Plum Pudding Model.

Front

What is the Plum Pudding Model?

Back

A model proposed by Thomson where electrons are embedded in a positively charged 'soup'.

Front

Who discovered the nucleus of the atom?

Back

Rutherford.

Front

What is Rutherford's model of the atom?

Back

A model that describes the atom as having a small, dense nucleus surrounded by electrons.