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

Sign up for an account

Already have a Quizlet account? .

Create an account


The smallest part of an element that contains all of the properties of that element.

Atomic Number

The atomic number is equal to the number of protons (positively charged particles) in the nucleus of an atom.


A negatively charged particle.


The simplest form of matter.


The smallest part of a compound that is made of individual atoms.


The center portion of an atom containing the protons and neutrons.


A positively charged atomic particle.

Valence Electrons

The outermost ring of electrons in an atom. Used to determine whether an element is an insulator, conductor or semiconductor.

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