The Element Indium

What is Indium? Element Properties & Periodic Table Info

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Periodic TableWhat is the element Indium as on the Periodic Table?

Definition of the Indium Element
A soft, malleable, silvery-white metallic element found primarily in ores of
Zinc and Tin, used as a plating over Silver in making mirrors, in plating aircraft bearings, and in compounds for making transistors. Indium is stable in air and in water but dissolves in acids. When heated above its melting point it ignites burning with a violet flame. The Atomic Number of this element is 49 and the Element Symbol is In.

Origin / Meaning of the name Indium
The name originates from the color Indigo in its atomic spectrum.

 

Periodic Table Group and Classification of the of the Indium Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Indium is classified in the 'Other Metals' section which can be located in groups 13, 14, and 15 of the Periodic Table. All of these elements are solid, have a relatively high density and are opaque. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the List of Metals.

Facts about the Discovery & History of the Indium Element
Indium was discovered by Ferdinand Reich and Theodor Richter in Germany in 1863. Richter  isolated the metal in 1867.

History of the Periodic Table
Check out the brief History of the Periodic Table which details dates and the names of famous scientists and chemists who contributed to the development of the Periodic Table.

Occurrence of the Indium Element
From residues generated during zinc ore processing / refining
Found in
Iron, Lead, and Copper ores
Canada is the leading producer

Abundances of the element in different environments
% in Universe 310-8%
% in Sun 410-7%
% in Meteorites 4.410-6%
% in Earth's Crust 0.000016%
% in Oceans 110-11%
% in Humans N/A

Associated Uses of Indium
Coating of high-speed bearings
Indium-tin-oxide thin films for liquid crystal displays (LCD)
Making mirrors
Making transistors
Photoconductors

In

The Properties of the Indium Element
Symbol of Element : In
Atomic Number : 49
Atomic Mass: 114.818 amu
Melting Point: 156.61 C - 429.76 K
Boiling Point: 2000.0 C - 2273.15 K
Number of Protons/Electrons: 49
Number of Neutrons : 66
Crystal Structure: Tetragonal
Density @ 293 K: 7.31 g/cm3
Color :
silvery-white

The Properties of the Indium Element
Name of Element : Indium
Symbol of Element : In
Atomic Number of Indium : 49
Atomic Mass: 114.818 amu
Melting Point: 156.61 C - 429.76 K
Boiling Point: 2000.0 C - 2273.15 K
Number of Protons/Electrons in Indium : 49
Number of Neutrons in Indium : 66
Crystal Structure: Tetragonal
Density @ 293 K: 7.31 g/cm3
Color of Indium :
silvery-white

Indium as on the Periodic Table
Check out Indium on the Periodic Table which arranges each chemical element according to its atomic number, as based on the Periodic Law, so that chemical elements with similar properties are in the same column. Our Periodic Table is simple to use - just click on the symbol for Indium as on the Periodic Table for additional information and for an instant comparison of the Atomic Weight, Melting Point, Boiling Point and Mass - G/cc with any other element. An invaluable source of facts and information as a Chemistry reference guide.

Other elements classified as "Other Metals"
The other elements contained in the classification of Other Metals are as follows:

  • Aluminium
  • Gallium
  • Tin
  • Thallium
  • Lead
  • Bismuth

What is Indium - IUPAC and the Modern Standardised Periodic Table
The Standardised Periodic Table in use today was agreed by the International Union of Pure Applied Chemistry, IUPAC, in 1985 and now recognises more periods and elements than Dimitri  Mendeleev knew in his day in his day but still all fitting into his concept of  the "Periodic Table" in which Indium is just one element that can be found.

Learn about what is Indium with these fast facts...
These articles contain facts and information relating to Indium and each of the other elements including the Periodic Symbol,  group, classification, properties and atomic number which is often referred to as the Periodic Table Number. Test your knowledge of chemistry and the Periodic Table by completing the Element Symbols and Atomic Numbers on our Blank Periodic Table. Chemistry students will also find a helpful section on Chemical Formulas.

What is the Element Indium

The Elements are the building blocks of Modern Science & Chemistry


 

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