Thursday, March 21, 2013

States of Matter


States of Matter Vocabulary

Atom- The building blocks of matter. The smallest unit of an element.

Molecule- A molecule is an electrically neutral group of two or more atoms bonded together.

Nucleus- The central part of an atom.

Electron- It travels around the nucleus at a very fast rate.  Electrons carry a negative electrical charge.

Proton- A part of the nucleus of an atom. Protons carry a positive electrical charge.

Neutron-  A part of the nucleus of an atom. Neutrons carry no electrical charge.