Atoms and Periodic Table

States that matter is composed of tiny littleunits called atoms

Sub-atomic particle with a negative charge

Represents the number of protons of an element 

Sub-atomic particle with a positive charge

The most basic piece of matter that retains anelements properties

The sum of protons and neutrons

 Is composed of one type of atom

It is where neutrons and protons are locatedwithin the atom

Has no electrical charge

Space around the nucleus .