Pierce,+Samuel

**__Name__**: Cobalt **__Symbol:__** Co __**Boiling Point: **__5198.0 °F __**Melting Point:**__ 2723.0 °F **__Density:__** 8.9 g/cm3 __**Proton #:**__ 27 **__Neutron #:__** 32 __**Electron #:**__ 27 **__Atomic #:__** 27 **__Atomic Mass:__** 58.9332 AMU **__# Valence Electrons:__** 2 **__How it was discovered:__** Georg Brandt was attempting to prove that a certain mineral could color a gass blue. But it was unknown what element made it do it. **__When it was discovered:__** 1739 **__Who discovered it:__** Georg Brandt <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Where /How found:__** Many rocks, plants and animals, as well as soil. <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Physical properties:__** Cobalt is a hard, gray metal that looks a lot like iron. Cobalt is one three naturally occurring magnectic metals. <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Chemical properties:__** Cobalt is a moderately reactive element. It reacts with most acids to produce hydrogen gas. It doesn’t react with water at room temperatures. <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Minerals found in:__** Rock <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Two common chemical reactions:__** Cobalt reacts with water. Cobalt reacts with air. <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Industrial/commerical uses:__** Used to make beautiful deep blue glass, ceramics, pottery and tiles. <span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Cost:__** $4.40 per 100grams
 * __<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">Electron Configuration: __**<span style="color: black; font-family: 'arial rounded mt bold','sans-serif'; font-size: 21px;">1s2 2s2 2p6 3s2 3p6 4s2 3d7
 * __<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">Diagram: __**

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Element in pure state__**:

<span style="font-family: 'Arial Rounded MT Bold','sans-serif'; font-size: 21px;">**__Unusual Facts:__** It gets its name from the German word for “evil spirit” or the Greek word for “mine”. It is essential for human and animal nutrition. It also gives glass a blue color when added.

WebElements: the periodic table on the WWW [[]] [|Copyright]1993-2011 [|Mark Winter] [[|The University of Sheffield]and WebElements Ltd, UK]. All rights reserved.

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 * This page was last modified on 13 February 2012 at 20:43

[] UC Davis This page was last updated 10 February 2012 at 11:00