118
11HHydrogen2
13141516172HeHelium
23LiLithium4BeBeryllium5BBoron6CCarbon7NNitrogen8OOxygen9FFluorine10NeNeon
311NaSodium12MgMagnesium345678910111213AlAluminum14SiSilicon15PPhosphorus16SSulfur17ClChlorine18ArArgon
419KPotassium20CaCalcium21ScScandium22TiTitanium23VVanadium24CrChromium25MnManganese26FeIron27CoCobalt28NiNickel29CuCopper30ZnZinc31GaGallium32GeGermanium33AsArsenic34SeSelenium35BrBromine36KrKrypton
537RbRubidium38SrStrontium39YYttrium40ZrZirconium41NbNiobium42MoMolybdenum43TcTechnetium44RuRuthenium45RhRhodium46PdPalladium47AgSilver48CdCadmium49InIndium50SnTin51SbAntimony52TeTellurium53IIodine54XeXenon
655CsCaesium56BaBarium57-71
La-Lu
72HfHafnium73TaTantalum74WTungsten75ReRhenium76OsOsmium77IrIridium78PtPlatinum79AuGold80HgMercury81TlThallium82PbLead83BiBismuth84PoPolonium85AtAstatine86RnRadon
787FrFrancium88RaRadium89-103
Ac-Lr
104RfRutherfordium105DbDubnium106SgSeaborgium107BhBohrium108HsHassium109MtMeitnerium110DsDarmstadtium111RgRoentgenium112CnCopernicium113NhNihonium114FlFlerovium115McMoscovium116LvLivermorium117TsTennessine118OgOganesson
8119UueUnunennium120UbnUnbinilium121-126
Ubu-Ubh
57LaLanthanum58CeCerium59PrPraseodymium60NdNeodymium61PmPromethium62SmSamarium63EuEuropium64GdGadolinium65TbTerbium66DyDysprosium67HoHolmium68ErErbium69TmThulium70YbYtterbium71LuLutetium
89AcActinium90ThThorium91PaProtactinium92UUranium93NpNeptunium94PuPlutonium95AmAmericium96CmCurium97BkBerkelium98CfCalifornium99EsEinsteinium100FmFermium101MdMendelevium102NoNobelium103LrLawrencium
121UbuUnbiunium122UbbUnbibium123UbtUnbitrium124UbqUnbiquadium125UbpUnbipentium126UbhUnbihexium127UbsUnbiseptium
Indium
In49
114.818266549865 (g/mol)
Post-transition metal
Overview
  • Latin name:
    Indium
  • English name:
    Indium
  • Year discovered:
    1863
  • Discovered by:
    Ferdinand Reich
  • Country of Discovery:
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  • Cost per 100 grams:
    130 USD
  • CAS Number:
    CAS7440-74-6
  • Electron shell:
    K2-L8-M18-N18-O3-P0-Q0-R0
          Electrons:
          49
          Protons:
          49
          Neutrons:
          66
          Note

          Indium is a chemical element with symbol In and atomic number 49. It is a post-transition metallic element that is rare in Earth's crust. The metal is very soft, malleable and easily fusible, with a melting point higher than sodium, but lower than lithium or tin.

          Properties
          • Atomic number:
            49
          • Atomic weight (Relative atomic mass):
            114.818266549865 (g/mol)
          • Density:
            7.31 (g/cm³)
          • Melting point:
            156.6°C = 313.88°F = 429.75K
          • Boiling point:
            2072.0°C = 3761.60°F = 2345.15K
          • Valence electrons:
            1, 2, 3
          • Period:
            5
          • Group:
            IIIA
          • Block:
            p - block
          • Emission spectrum:
          Thermodynamic properties
          • Phase:
            Solid
          • Fusion heat:
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          • Specific heat:
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          • Thermal expansion:
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          • Vaporization heat:
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          Atomic properties
          • Electron configuration:
            [Kr] 4d10 5s2 5p1 = 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p1
          • Oxidation states:
            • -
            • -
            • -
            • -
            • -
            • -
            • +1
            • +2
            • +3
            • -
            • -
            • -
            • -
            • -
            • -
          • Ion charge:
            In3+
          • The ionization potential of an atom:
            5.786 (eV)
          • Atomic radius:
            156 (pm)
          • Covalent radius:
            142 (pm)
          • Van der Waals radius:
            193 (pm)
          Electromagnetic properties
          • Electrical conductivity:
            11947431.30227 (S/m)
          • Electrical type:
            Conductor
          • Magnetic type:
            Diamagnetism
          • Volume magnetic susceptibility:
            -1.02 ⋅ 10-5
          • Mass magnetic susceptibility:
            -1.4 ⋅ 10-9
          • Molar magnetic susceptibility:
            -1.61 ⋅ 10-10 (m³/mol)
          • Resistivity:
            8.37 ⋅ 10-8 (Ω · m)
          • Superconducting point:
            -269.74°C = -453.53°F = 3.41K
          Grid parameters
          • Crystal structure:
            Tetragonal
          • Grid parameters:
            a=3.252 Å; c=4.946 Å
          • Attitude:
            1.52
          • Debye temperature:
            -144.15°C = -227.47°F = 129K
          Additional information
          • Colour:
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          • CAS Number:
            CAS7440-74-6
          • CID Number:
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          • RTEC Number:
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          • Brinell hardness:
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          • Mohs hardness:
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          • Vickers hardness:
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          • Bulk modulus:
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          • Young's modulus:
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          • Liquid density:
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          • Molar volume:
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          • Poisson's ratio:
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          • Shear modulus:
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          • Speed of sound transmission:
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          • Refractive index:
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          • Thermal conductivity:
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          Reactivity
          • Electronegativity:
            1.78
          • Valence electrons:
            1, 2, 3
          • Electron affinity:
            37.043 kJ/mole
          Nuclear properties
          • Radioactive:
            No
          • Half life:
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          • Lifetime:
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          • Neutron cross section, barn:
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          • Fire hazard:
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          • Health hazard:
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          • Reactivity:
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          • Specific hazard:
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          Prevalence
          • Universe contains "Indium" at the rate of
            3 ⋅ 10-8%
          • Sun contains "Indium" at the rate of
            4 ⋅ 10-5%
          • Oceans contain "Indium" at the rate of
            1.0 ⋅ 10-9%
          • Human body contains "Indium" at the rate of
            5.7072814 ⋅ 10-7%
          • The Earth's crust consists of "Indium" at the rate of
            2.5 ⋅ 10-5%
          • Meteorites consist of "Indium" at the rate of
            4.4 ⋅ 10-6%