Atomic Theory

Front

What is the main conclusion of Rutherford's Gold Foil Experiment?

Back

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

Front

What did J.J. Thomson discover about the structure of the atom?

Back

An atom contains negatively and positively charged particles.

Front

What is Dalton's Atomic Theory?

Back

Every element consists of one type of atom.

Front

What particle did Rutherford discover through his experiments?

Back

Proton.

Front

What model of the atom did Thomson propose?

Back

Plum Pudding Model.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the significance of the nucleus in an atom?

Back

It contains most of the atom's mass and is positively charged.

Front

What did the Cathode Ray Experiment demonstrate?

Back

The existence of electrons.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of atoms bonded together.