Titanium metal, with the symbol Ti, is the ninth most abundant element in the earth‘s crust. It does not occur in large deposits, yet small amounts of titanium are found in almost every rock... Tungsten Metal Tungsten is a rare naturally occurring chemical element on earth. It is known...
Ce. Chemical symbol for cerium. Cementite. A compound of iron and carbon, known chemically as iron carbide and having the approximate chemical formula Fe3C. It is characterized by an orthorhombic crystal structure. When it occurs as a phase in steel, the chemical composition is altered by the ...