AtomICS16HER

Atom-smallest mass that could be considered an element. Nucleus-the center of an atom that contains protons and neutrons. Proton-a single positively charged particle in the nucleus. Neutron-an uncharged particle with slightly larger mass than the proton in the nucleus. Electron-a negatively charged particle that orbits the nucleus. Atomic number- the amount of protons an atom has. Atomic weight-The amount of mass that an atom has. Atomic symbol-the abbreviation of the name of an atom.

Sodium+Oxygen=Sodium oxide Sodium+Chlorine=Sodium chloride



Blue=electron red=proton purple=neutron
 * 1) of electron=# of proton
 * 2) of electron+# of proton=# of neutron