Search results
Results from the WOW.Com Content Network
Cobalt is a chemical element; it has symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, somewhat brittle, gray metal.
This is a list of chemical elements and their atomic properties, ordered by atomic number (Z). ... Cobalt: Co: 58.933195(5) 1.91: ... a few atomic radii are ...
A chemical element, often simply called an element, is a type of atom which has a specific number of protons in its atomic nucleus (i.e., a specific atomic number, or Z). [ 1 ] The definitive visualisation of all 118 elements is the periodic table of the elements , whose history along the principles of the periodic law was one of the founding ...
The compounds cobalt silicate and cobalt(II) aluminate (CoAl 2 O 4, cobalt blue) give a distinctive deep blue color to glass, ceramics, inks, paints and varnishes. Cobalt occurs naturally as only one stable isotope, cobalt-59. Cobalt-60 is a commercially important radioisotope, used as a radioactive tracer and for the production of high-energy ...
Cobalt-60 (60 Co) is a ... India has a number of CANDU reactors at the Rajasthan Atomic Power Station used for producing 60 Co. ...
Phosphorus, cobalt, and platinum were isolated before 1750. ... Atomic number, Element, and Symbol all serve independently as unique identifiers.
The isotopes of cobalt range in atomic weight from 50 Co to 78 Co. The main decay mode for isotopes with atomic mass less than that of the stable isotope, 59 Co, is electron capture and the main mode of decay for those of greater than 59 atomic mass units is beta decay .
Spectral lines of cobalt: ... {Infobox element/periodic table}} (extends period 8 when atomic number ≥ 119. See {{Infobox ununennium}}). Bare Periodic table, micro