Atomic symbol - In
Atomic weight - 114.82
Atomic number - 49
Electron configuration - 2-8-18-18-3
Oxidation states - +3
State of matter - solid
Heavy metal-low melting
Discovered in 1863 by Ferdinand Reich and Theodor Richter
Boils at 2080 .C, melts at 156.61 .C

Notes:
Indium is about as rare as silver. It has a silvery-white lustre. Like tin it
emits a screeching sound when bent. It is used in coating aircraft engine
bearings because it improves corrosion resistance and lets the bearing to
retain a more adherent oil film.