Aidan+Pierias+MASC


 * __Aidan Pierias MASC __**

__The element "Cobalt"__

The element "Cobalt" has a silvery-white metallic colour. Its properties are similar to the elements iron and nickel. Like cobalt, iron and nickel are both hard and magnetic. Cobalt is mainly used in alloys (mixture of metals).

Cobalt's atomic number is 27, which is the number of protons in it's nucleus. Its relative atomic mass is 58.933200. An elements relative atomic mass is its mass divided by 1/12 of the mass of an atom of carbon 12. Cobalt has a density of 8.9g per cubic centimeter (8.9g cm^3). Its melting point is 1495 degrees celsius and its boiling point is 2870 degrees celsius. Cobalt's chemical symbol is Co. Cobalt was first isolated in the 1730s by a Swedish chemist named Georg Brandt. Cobalt silicate glass (Smalt) and Cobalt blue (another form of cobalt) gives a distinctive deep blue colour to glass, ceramics, inks, paints and varnishes. 