Nanografi Nanotechnology

Ytterbium(Yb) is the one of the lanthanide elements with an atomic number 70. Ytterbium is a bright, soft, silvery-white rare earth metal. Malleability and ductility are also two properties of ytterbium metal. Due to ytterbium is a little electropositive element, it slowly reacts water resulting in ytterbium hydroxide. Ytterbium reacts with all halogens. +2 oxidation state is the basis of the relative stability, but ytterbium, as other rare earth metals, usually has +3 oxidation state in most compounds. The discovery of ytterbium was made in Geneva, Switzerland by Swiss chemist Jean Charles Galissard de Marginac in 1878. The name comes from the name of Swiss village Ytterby. 1937 is year when ytterbium metal was purified by Klemm and Bonner by heating ytterbium chloride with potassium. In 1953 the pure ytterbium was produce at th Ames laboratory from which both physical and chemical properties could be measured. The commercial source of ytterbium is monazite mineral. However, ytte...