Proficiency Testing Oversight Board

Get the facts about element Cobalt (Co) [27] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including decay trees) as well as some historic information.

Stellite alloys, containing cobalt, chromium, and tungsten, are used for high-speed, heavy-duty, high temperature cutting tools, and for dies. Cobalt is also used in other magnetic steels and stainless steels, and in alloys used in jet turbines and gas turbine generators.

Cobalt-60, a radioactive isotope of cobalt, is an important source of gamma rays and is used to treat some forms of cancer and as a medical tracer. Cobalt-60 has a half-life of 5.27 years and decays into nickel-60 through beta decay.

Cobalt (Co) lies with the transition metals on the periodic table. The atomic number of Cobalt is 27 with an atomic mass of 58.933195. Cobalt was first discovered in 1735 by George Brandt in Stockholm Sweden. It is used in many places today, such as, magnets materials, paint pigments, glasses, and even cancer therapy.

Nov 14, 2018 · Cobalt is atomic number 27 on the periodic table and element symbol Co. This hard, blue-gray transition metal is used in alloys and imparts a blue color to glass.

This solid ferromagnetic silver-white element was known in ancient times for its compounds, but its discovery was credited to G. Brandt between 1730 and 1737 when he was able to show that cobalt colors glass a rich blue.

Although the average level of cobalt in soils is 8 ppm, there are soils with as little as 0.1 ppm and others with as much as 70 ppm. In the marine environment cobalt is needed by blue-green …

Our cobalt page has over 250 facts that span 106 different quantities. Each entry has a full citation identifying its source. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature.

Using PTOB as an acronym offers efficiency and brevity, saving time and space in communication while conveying professionalism and expertise within specific industries.