What matter is made Of

                                                                              Vocabulary#6
Element: a basic building block of matter ;a pure substance that cannot be broken down into anything simpler.
compound: a chemical combination of two or more elements into a single substance.

atom: the smallest unit of an element that still has the properties of the element.

proton: a particle with a positive charge in the nucleus of an atom.

neutron: an uncharged particle in the nucleus of an atom.

electron: a particle with a negative charge moving around the nucleus of an atom.

nucleus: the dense center part of an atom.

molecule: a group of more than one atom joined together that acts like a single particle.