Chemical Formula: GeSe2
Catalog Number: ST0308
CAS Number: 12065-11-1
Purity: 99.9%, 99.95%, 99.99%
Shape: Discs, Plates, Column Targets, Step Targets, Custom-made
Germanium is a chemical element originated from Germany (with the Latin name Germania). It was first mentioned in 1886 and observed by A. Winkler. “Ge” is the canonical chemical symbol of germanium. Its atomic number in the periodic table of elements is 32 with location at Period 4 and Group 14, belonging to the p-block. The relative atomic mass of germanium is 72.64(1) Dalton, the number in the brackets indicating the uncertainty.
Selenium is a chemical element originated from Moon (with the Greek name selene). It was first mentioned in 1817 and observed by J. Berzelius and G. Gahn. The isolation was later accomplished and announced by J. Berzelius and G. Gahn. “Se” is the canonical chemical symbol of selenium. Its atomic number in the periodic table of elements is 34 with location at Period 4 and Group 16, belonging to the p-block. The relative atomic mass of selenium is 78.96(3) Dalton, the number in the brackets indicating the uncertainty.
