Company Name | Indium |
---|---|
Website | https://en.wikipedia.org |
Snippet | Indium is a chemical element with the symbol In and atomic number 49. Indium is the softest metal that is not an alkali metal.It is a silvery-white metal that resembles tin in appearance. It is a post-transition metal that makes up 0.21 parts per million of the Earth's crust. Indium has a melting point higher than sodium and gallium, but lower than lithium and tin. |
111In | syn |
113In | 4.28% |
115In | 95.72% |
Block | p-block |
Group | group 13 (boron group) |
P (Pa) | Vapor pressureP (Pa)1101001 k10 k100 kat T (K)119613251485169019622340 |
Period | period 5 |
Country | united states |
Founded | 2005.0 |
Website | goindium.com |
Industry | insurance |
at T (K) | 1196 |
linkedin.com/company/goindium | |
Discovery | Ferdinand Reich and Hieronymous Theodor Richter (1863) |
Isotope | IsotopeAbundanceHalf-life (t1/2)Decay modeProduct111Insyn2.8 dε111Cd113In4.28%stable115In95.72%4.41×1014 yβ−115Sn |
Appearance | silvery lustrous gray |
CAS Number | 7440-74-6 |
size_range | 11 - 50 |
display_url | goindium.com |
Headquarters | columbus, ohio, united states |
Phase at STP | solid |
Triple point | 429.7445 K, ~1 kPa[2] |
Atomic radius | empirical: 167 pm |
Boiling point | 2345 K (2072 °C, 3762 °F) |
Melting point | 429.7485 K (156.5985 °C, 313.8773 °F) |
Mohs hardness | 1.2 |
Pronunciation | /ˈɪndiəm/ (IN-dee-əm) |
Heat of fusion | 3.281 kJ/mol |
Covalent radius | 142±5 pm |
First isolation | Hieronymous Theodor Richter (1864) |
Young's modulus | 11 GPa |
Brinell hardness | 8.8–10.0 MPa |
Element category | Post-transition metal |
Oxidation states | −5, −2, −1, +1, +2, +3[3] (an amphoteric oxide) |
Atomic number (Z) | 49 |
Crystal structure | body-centered tetragonal |
Electronegativity | Pauling scale: 1.78 |
Magnetic ordering | diamagnetic[4] |
Thermal expansion | 32.1 µm/(m·K) (at 25 °C) |
Natural occurrence | primordial |
Density (near r.t.) | 7.31 g/cm3 |
Electrons per shell | 2, 8, 18, 18, 3 |
Ionization energies | 1st: 558.3 kJ/mol, 2nd: 1820.7 kJ/mol, 3rd: 2704 kJ/mol, |
Molar heat capacity | 26.74 J/(mol·K) |
Number of employees | 20 |
Heat of vaporization | 231.8 kJ/mol |
Thermal conductivity | 81.8 W/(m·K) |
Van der Waals radius | 193 pm |
when liquid (at m.p.) | 7.02 g/cm3 |
Electrical resistivity | 83.7 nΩ·m (at 20 °C) |
Electron configuration | [Kr] 4d10 5s2 5p1 |
Magnetic susceptibility | −64.0·10−6 cm3/mol (298 K)[5] |
Speed of sound thin rod | 1215 m/s (at 20 °C) |
Standard atomic weight.mw-parser-output .nobold{font-weight:normal} Ar, std(In) | 114.818(1)[1] |
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