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Indium at Chemical Elements.com
Basic Information | Atomic Structure | Isotopes | Related Links | Citing This Page

Basic Information

Name: Indium
Symbol: In
Atomic Number: 49
Atomic Mass: 114.818 amu
Melting Point: 156.61 °C (429.76 K, 313.898 °F)
Boiling Point: 2000.0 °C (2273.15 K, 3632.0 °F)
Number of Protons/Electrons: 49
Number of Neutrons: 66
Classification: Other Metals
Crystal Structure: Tetragonal
Density @ 293 K: 7.31 g/cm3
Color: Silverish

Atomic Structure

[Bohr Model of Indium]  
Number of Energy Levels: 5

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 18
    Fifth Energy Level: 3


Isotope Half Life
In-1112.8 days
In-113m1.7 hours
In-1141.2 minutes
In-114m49.5 days
In-1154.4E14 years
In-115m4.5 hours
In-11614.1 seconds
In-116m54.2 minutes
In-11744.0 minutes
In-117m1.9 hours


Date of Discovery: 1863
Discoverer: Ferdinand Reich
Name Origin: From the Indigo color seen in its spectrum
Uses: coating of high-speed bearings
Obtained From: by-product of zinc refining

Related Links

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MLA Format for Citing This Page

Bentor, Yinon. Chemical Element.com - Indium. <http://www.chemicalelements.com/elements/in.html>.

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