-Elements are organized in catagories or groups, metals, metalloids, nonmetals, and noble gas.
-There are Three basic Laws of the atom, Definite composition, conservation of mass, and multiple proportions. It has a positive and negative charge in it. In the nucleus includes the neutrons and particles or electrons.
The Atomic number is the same as the number of protons in each atom of element. The mass number equals the number of protons and neutrons in a atom.
