Оценка:
Опубликованно: 01.12.1996.
Язык: Английский
Уровень: Средняя школа
Литературный список: Нет
Ссылки: Не использованы
  • Эссе 'Silver Essay: this is a report on silver', 1.
Фрагмент работы

Silver
Atomic Number:47
Atomic Weight: 107.8682
Melting Point: 1234.93K (961.78C)
Boiling Point: 2435K (2162C)
Density: 10.501 grams per cubic centimetre
Phase At Room Temperature: Solid
Element Classification: Transition Metal
Period Number: 5
Group Number: 11
Origin-:
The word silver derives from the Anglo-Saxon word seolfor. Silvers chemical symbol comes from the Latin word for silver, argentum.
History and Uses-:
Silver has been in use for over 5,000 years. Silver is obtained from pure deposits, silver ores such as argentite and horn silver. The Symbols for these are Ag2s for ar…

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