The Element Cobalt

What is Cobalt? Element Properties & Periodic Table Info

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Definition of the Cobalt Element
A hard, brittle metallic element, found associated with Nickel, silver, lead, Copper, and Iron ores and resembling nickel and iron in appearance and it can be magnetised. It is used chiefly for magnetic alloys, high-temperature alloys, and in the form of its salts for blue glass and ceramic pigments. The Atomic Number of this element is 27 and the Element Symbol is Co.

What is Cobalt? Origin / Meaning of the name Cobalt
The name cobalt comes from the German word kobalt , meaning evil spirit, the metal being so called by miners because it was poisonous.

 

What is Cobalt? Periodic Table Group and Classification of the Cobalt Element
Elements can be classified based on their physical states (States of Matter) e.g. gas, solid or liquid. This element is a solid. Cobalt is classified as a "Transition Metal" which are located in Groups 3 - 12 of the Periodic Table. Elements classified as Transition Metals are generally described as ductile, malleable, and able to conduct electricity and heat.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 History and the Discovery of the Cobalt Element
Cobalt was discovered by George Brandt (1694-1768) in 1737

What is Cobalt? Occurrence of the Cobalt Element
Cobalt occurs sparingly in nature, usually combined with
Arsenic or with arsenic and sulphur. Nickel has been found in the free state in meteorites. Compounds of cobalt fused with glass give it an intensely blue color. In powdered form such glass is sometimes used as a pigment called smalt. Cobalt salts, which contain water of crystallization, are usually cherry red in color; when dehydrated they become blue. Obtained from Sulfur, arsenic, Oxygen, cobaltine

Abundances of the element in different environments
% in Universe 0.0003%
% in Sun 0.0004%
% in Meteorites 0.059%
% in Earth's Crust 0.003%
% in Oceans 8×10-9%
% in Humans 2×10-6%

Medical Uses of Cobalt - Health and Treatments
Interesting information on the Medical Uses of Cobalt, Health and Treatments. Radium salts have been used as radiation sources in the treatment of cancer but are gradually being replaced in such therapy by cobalt and cesium.

Associated Uses of Cobalt
Magnets
Ceramics
Magnetic alloys
Cobalt boats
Glassware
Catalysts for the petroleum and chemical industries
Steel-belted radial tires
Used in radiotherapy

Co

The Properties of the Cobalt Element
Symbol of Element : Co
Atomic Number : 27
Atomic Mass: 58.9332 amu
Melting Point: 1495.0 °C - 1768.15 °K
Boiling Point: 2870.0 °C - 3143.15 °K
Number of Protons/Electrons : 27
Number of Neutrons : 32
Crystal Structure: Hexagonal
Density @ 293 K: 8.9 g/cm3
Color : silver-white

What is Cobalt? The Properties of the Cobalt Element
Name of Element : Cobalt
Symbol of Element : Co
Atomic Number of Cobalt : 27
Atomic Mass: 58.9332 amu
Melting Point: 1495.0 °C - 1768.15 °K
Boiling Point: 2870.0 °C - 3143.15 °K
Number of Protons/Electrons in Cobalt : 27
Number of Neutrons in Cobalt : 32
Crystal Structure: Hexagonal
Density @ 293 K: 8.9 g/cm3
Color of Cobalt : silver-white

Cobalt as on the Periodic Table
Check out Cobalt 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 Cobalt 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.

What is Cobalt - 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 Cobalt is just one element that can be found.

Learn about what is Cobalt with these fast facts...
These articles contain facts and information relating to Cobalt 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 Cobalt

The Elements are the building blocks of Modern Science & Chemistry


 

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