Periodic Table of Videos- Beryllium

Beryllium is an unusual metal many people have never heard of. It is unique because if you put x-rays through beryllium they are not absorbed, they just go straight through. This make beryllium useful for x-ray experiments where scientists want to make a vacuum without the vessel absorbing the rays. Beryllium is very toxic. It is know to cause an industrial lung disease called berylliosis. One small dome of beryllium costs 15,000 Euros.