Cobalt Rebecca Lyons 3rd Block

Basic things about the element Cobalt

The element I have chosen is Cobalt. This elements symbol is Co. The atomic number of Cobalt is 27. The atomic mass is 59. It has 27 protons, 32 Neutrons, and 27 electrons.

Cobalt is a solid and a metal

Cobalt is a brittle, hard, silver-grey transition metal with magnetic properties similar to those of iron. Cobalt salts color glass a deep blue color. Cobalt compounds are important catalysts in a number of industrial processes.

Georg Brandt

Cobalt was discovered by a Swedish chemist and mineralogist named Georg Brandt. He discovered it in 1735. He was the first person to discover a metal unknown in ancient times. He was able to show that cobalt was the source of the blue color in glass, which previously had been attributed to the bismuth found with cobalt.

Cobalt is used in many things we use everyday.

Stellite alloys, which contain cobalt, chromium and tungsten, are used to make high-speed and high temperature cutting tools and dyes. Cobalt is also used to make alloys for jet engines and gas turbines, magnetic steels and some types of stainless steels.

Unusual Facts

1. Cobalt compounds have been used for centuries to impart a rich blue color to glass, glazes, and ceramics. 2. It is an important source of gamma rays and is used to treat some forms of cancer and as a medical tracer. 3. The origin of the name Cobalt is from the German word "kobald" meaning "goblin" or evil spirit.

Cobalt is a brittle, hard, silver-grey transition metal with magnetic properties similar to those of iron. It has a high melting point and is hard-wearing even at high temperatures. Cobalt has a melting point of 1495°C, boiling point of 2870°C, specific gravity of 8.9 (20°C), with a valence of 2 or 3.

Made with Adobe Slate

Make your words and images move.

Get Slate

Report Abuse

If you feel that this video content violates the Adobe Terms of Use, you may report this content by filling out this quick form.

To report a Copyright Violation, please follow Section 17 in the Terms of Use.