This is a list of the 118 chemical elements which have been identified as of 2021. A chemical element, often simply called an element, is a species of atoms which all have the same number of protons in their atomic nuclei (i.e., the same atomic number, or Z). An Indium Antimonide thermal infrared imaging camera Data about my new favorite element: Indium. Atomic number: 49. Atomic mass: 114.818 amu. Common isotopes: 115 In (atomic mass: 112.90 amu) accounts for 95.71% of all In 113 In (atomic mass: 114.90 amu) accounts for 4.29% of all In.
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Indium (In) is a silver-white metal that has the atomic number 49 in the periodic table. It is located in Group 13 of the periodic table. It has the symbol In.
Atomic Number:
49
Atomic Symbol:
In
Atomic Weight:
114.82
Electron Configuration:
[Kr]5s24d105p1
Total Isotopes
85
Total Isomers
46
Radioactive Isotopes
38
Stable Isotopes
1
X-Ray Energies
Kα
24.21
Kβ
27.34
LL
2.90
Lα
3.29
Mz
0.37
Mα
--
View Nuclear Periodic Table View Isotopic & Isomeric Data
History
(from the brilliant indigo line in its spectrum) Discovered by Reich and Richter, who later isolated the metal. Until 1924, a gram or so constituted the world's supply of this element in isolated form. It is probably about as abundant as silver. About 4 million troy ounces of indium are now produced annually in the Free World. Canada is presently producing more than 1,000,000 troy ounces annually.
Sources Indium is most frequently associated with zinc materials, and it is from these that most commercial indium is now obtained; however, it is also found in iron, lead, and copper ores.
Cost
Indium - Element Information, Properties And Uses | Periodic ...
The present cost of indium is about $1 to $5/g, depending on quantity and purity.
Properties
It is available in ultra pure form. Indium is a very soft, silvery-white metal with a brilliant luster. The pure metal gives a high-pitched 'cry' when bent. It wets glass, as does gallium.
Uses
It has found application in making low-melting allows; an allow of 24% indium - 76% gallium is liquid at room temperature. It is used in making bearing alloys, germanium transistors, rectifiers, thermistors, and photoconductors. It can be plated onto metal and evaporated onto glass, forming a mirror as good as that made with silver but with more resistance to atmospheric corrosion.
Handling
Atomic Number In Indium
There is evidence that indium has a low order of toxicity; however, care should be taken until further information is available.