Rhenium is a chemical element; it has symbol Re and atomic number 75. It is a silvery-gray, heavy, third-row transition metal in group 7 of the periodic table. With an estimated average concentration
Molybdenite
Ammonium perrhenate
The Pratt & Whitney F-100 engine uses rhenium-containing second-generation superalloys
Indium is a chemical element; its symbol is In and its atomic number is 49. It is a silvery-white post-transition metal and one of the softest elements. Chemically, indium is similar to gallium and th
Indium wetting the glass surface of a test tube
A magnified image of an LCD screen showing RGB pixels. Individual transistors are seen as white dots in the bottom part.