The atomic mass of aluminum is 26.98 amu. Aluminum is one of the lightest elements, making it ideal for construction, transportation and other commercial uses.
Aluminum is a very common element, third in abundance only to silicon and oxygen. However, aluminum is too reactive to exist in a pure form naturally. Over 270 different aluminum compounds exist, the most common being bauxite. Aluminum metal has been removed from natural compounds for commercial use since the early 1900s. Generally, aluminum use is favorable because the metal is light, malleable and resistant to erosion. Finally, aluminum is very easy to recycle, which makes it a renewable resource for the planet.