Electronic data		Thermal data		Steric data
Shells: 2,8,18,18,3 Orbitals: [Kr] 4d10 5s2 5p1 Electronegativity: 1.5, 1.7 1. Ionization potential: 5.7864 eV 2. Ionization potential: 18.869 eV 3. Ionization potential: 28.03 eV Oxidation states: 3 Electrical conductivity: 0.116 10^6		Melting point: 156.61 °C Boiling point: 2080 °C Specific heat: 0.23 J/gK Heat of fusion: 3.263 kJ/mol Heat of vaporization: 231.50 kJ/mol Thermal conductivity: 0.816 W/cmK		Atomic radius: 2.00 Å Ionic radius: 0.80 Å () Covalent radius: 1.44 Å Atomic volume: 15.7 cm³/mol Density (293 K): 7.31 g/cm³ Crystal structure: Tetragonal

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
111In	0	111	9/2	2.8049d	EC	View
113In	4.28	112.904	9/2	--	stable	--
113Inm	0	113	1/2	1.658h	IT	View
114In	0	114	1	1.198m	-,EC,+	View
114Inm	0	114	0	49.51d	IT,EC	View
115In	95.72	114.904	9/2	4.4E14y	-	View
115Inm	0	115	1/2	4.486h	IT,-	View
116In	0	116	1	14.1s	-	View
116Inm	0	116	5	54.2m	-	View
117In	0	117	9/2	44m	-,b-	View
117Inm	0	117	1/2	1.94h	-,IT	View

Legend

Name origin:	Latin: indicum (color indigo), the color it shows in a spectroscope.
Description:	Rare, very soft, silver-white metal
Discovered by:	Ferdinand Reich, T. Richter
Year:	1863
Place:	Germany
Sources:	Found in certain zinc ores.
Use(s):	Used to coat high speed bearings and as an alloy that lowers the melting point of other metals. Relativly small amounts are used in dental items and in electronic semiconductors.