Chiari malformation In Chiari malformation surgery, doctors remove a small section of bone at the back of your skull to make room for part of your brain (cerebellum) and relieve pressure on your brainstem, cerebellum and spinal cord.
Europium is a ductile metal with a hardness similar to that of lead. It crystallizes in a body-centered cubic lattice. Some properties of europium are strongly influenced by its half-filled electron shell.Europium has the second lowest melting point and the lowest density of all lanthanides.uropium is a ductile metal with a hardness similar to that of lead. It crystallizes in a body-centered cubic lattice. Some properties of europium are strongly influenced by its half-filled electron shell.
Europium oxide is a compound made of europium metal and oxygen. Europium reacts strongly with oxygen in the air, catching fire spontaneously. Europium oxide phosphors are also used in printing postage stamps.These phosphors make it possible for machines to read a stamp and know what its value is.uropium is the most active of the lanthanides. It is more likely to react with other elements than the other rare earth elements. Europium is quite expensive to produce, so it has few practical uses.