This colorful periodic table wallpaper is a bright and cheerful way to decorate your desktop and have access to basic elemental information. This includes all 118 element's atomic number, element symbol, element name, and atomic mass.
This is a list of the radioactive elements of the periodic table. While all elements have some radioactive isotopes, these 37 elements have no stable isotopes. These elements are considered the "radioactive elements".
Chemistry departments often have kits of plastic balls to stick together to represent atoms and their arrangement in molecules. These kits come with several different colors to easily distinguish one element from another. The choice of color for each atom is not arbitrary. The color code of these atoms is known as CPK colors.