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Опубликованно: 16.12.2004.
Язык: Английский
Уровень: Средняя школа
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  • Эссе 'Cobalt & Lithium', 1.
Фрагмент работы

Cobalt was discovered in 1735 by a Swedish scientist Georg Brandt. The origin of its name means evil spirit. It is a metal with an atomic number of 27 and an atomic weight of 58.933200 amu's. Its symbol is Co and it resides in Group 9 Period 4. It is a metal and has a lustrous silver shine to it which resembles iron or nickel. Unlike most metals which are malleable, Cobalt is actually quite brittle. It is also one of the transition metals with a Hexagonal crystal structure.
Cobalt occurs naturally throughout the world and can be mined. It is used in many commercial, industrial and military…

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