Chemical Formula: Fe3O4
Catalog Number: ST0157
CAS Number: 1317-61-9
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.
Iron, also called ferrum, is a chemical element originated from the Anglo-Saxon name iren (ferrum in Latin). It was early used before 5000 BC. “Fe” is the canonical chemical symbol of iron. Its atomic number in the periodic table of elements is 26 with location at Period 4 and Group 8, belonging to the d-block. The relative atomic mass of iron is 55.845(2) Dalton, the number in the brackets indicating the uncertainty.
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