Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account


Studied Gas discharge tubes


Plum pudding model of an atom and discovered negative particles


studied fluorescence


Discovered polonium and radium


Gold foil experiment/ Rutherford model of an atom


discovered x rays


Discovered neutron

Plank/ Einstein

Quantum Theory


Planetary model of an atom


Cloud model of an atom


said electron path is undetermined

Plumb pudding model

An atom is a solid body having an equal number of positive and negative charges

Rutherford Model

Dense nucleus with a lot of empty space

Planetary model

Electrons have definite energy levels, and revolve around a nucleus

Cloud model

Electrons are found in loosely defined energy levels

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording