Chemical Formula: La2O3
Catalog Number: ST0163
CAS Number: 1312-81-8
Purity: 99.9%, 99.95%, 99.99%
Shape: Discs, Plates, Column Targets, Step Targets, Custom-made
Oxygen is a chemical element originated from the Greek ‘oxy’ and ‘genes’ meaning acid-forming. It was first mentioned in 1771 and observed by W. Scheele. The isolation was later accomplished and announced by W. Scheele. “O” is the canonical chemical symbol of oxygen. Its atomic number in the periodic table of elements is 8 with location at Period 2 and Group 16, belonging to the p-block. The relative atomic mass of oxygen is 15.9994(3) Dalton, the number in the brackets indicating the uncertainty.