Atomic Theory and Structure Review

Front

What new scientific evidence led to changes in Dalton’s atomic theory?

Back

The discovery of subatomic particles

Front

What did J. J. Thomson discover about electrons?

Back

Electrons are negatively charged and part of a positively charged atom

Front

What was Rutherford’s contribution to the structure of an atom?

Back

He named the center of the atom the Nucleus that contained + charged protons and that electrons move in an orbit

Front

What is the structure of an atom?

Back

An atom has a nucleus containing protons and neutrons, with electrons in an electron cloud surrounding the nucleus

Front

Where can I find a proton?

Back

Found in the nucleus

Front

Where would I find a neutron?

Back

Found in the nucleus

Front

Where can I find an electron?

Back

Found in the electron cloud surrounding the nucleus

Front

What are the forces that exist inside an atom between subatomic particles?

Back

Electromagnetic force

Front

What charge do protons have?

Back

Positive charge

Front

How can a neutral atom become positively or negatively charged?

Back

By gaining or losing electrons