Chemical Element- Beryllium

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by beryllchan
Last updated 4 years ago

Discipline:
Science
Subject:
Chemical Elements
Grade:
9

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Chemical Element- Beryllium

Basic InformationAtomic Number: 4Atomic Mass: 9,012182Density: 1.86 g.cm-3Melting Point: 1278.0 °CBoiling Point: 2970.0 °C Number of Protons/Electrons: 4Number of Neutrons: 5Classification: Alkaline Earth MetalsColor: GrayDate of Discoverey: 1798Discoverer: Louis Nicolas VauquelinName Origin: From the mineral beryl Obtained From: beryl, chrysoberyl

PHYSICAL PROPERTIESPhase at Room Temperature: SolidLuster: pearly, resinous, vitreousStreak: WhiteTaste: Sweet, sugary taste (but poisonus) Strength: Relatively soft metal that is strong but brittle

Beryllium

Discoverer

Saftey Considerations:Chronic Beryllium Disease - CBD may develop after an individual breathes beryllium dust or fumes. CBD is a disease that affects the lungs causing inflammation and sometimes scarring. It is important to know that no one develops CBD unless they are exposed to beryllium and develop an immune response to it. (beryllium sensitization)

UsesUnlike most metals, beryllium is virtually transparent to x-rays, so it is used in radiation windows for x-ray tubes. Beryllium alloys are used in the aerospace industry as light-weight materials for high performance aircraft, satellites and spacecraft. Beryllium is used as an alloy with copper to make spark-proof tools.

History Emerald and beryll was recognized as the same mineral by Abbé Haüy in 1798. It was Louis-Nicholas Vauquelin, a french chemist discovered that there was an uknown element present in emerald and beryl. Friedrich Wölhler of Germany and A. Bussy of France succeeded in isolating the element in 1828. Beryllium was produced by reducing beryllium chloride (BeCl2) with potassium in a platinum crucible. Today beryllium is produced by electrolysis of a mixture of molten beryllium chloride (BeCl2) and sodium chloride (NaCl)

Atomic Structure

4 Be 9

Made by:Beryll Jasmine Chan


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