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Beryllium 8

Bryce Science/Medical posted on Feb 22, 2015
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Description


Beryllium is a chemical element with symbol Be and atomic number 4. Because beryllium created through stellar nucleosynthesis is short-lived, it is a relatively rare element in the universe. It is a divalent element which occurs naturally only in combination with other elements in minerals. Notable gemstones which contain beryllium include beryl (aquamarine, emerald) and chrysoberyl. As a free element it is a steel-gray, strong, lightweight and brittle alkaline earth metal. Beryllium improves many physical properties when added as an alloying element to aluminium, copper (notably the alloy beryllium copper), iron and nickel. Tools made of beryllium copper alloys are strong and hard and do not create sparks when they strike a steel surface. In structural applications, the combination of high flexural rigidity, thermal stability, thermal conductivity and low density (1.85 times that of water) make beryllium metal a desirable aerospace material for aircraft components, missiles, spacecraft, and satellites. Because of its low density and atomic mass, beryllium is relatively transparent to X-rays and other forms of ionizing radiation; therefore, it is the most common window material for X-ray equipment and components of particle physics experiments.The high thermal conductivities of beryllium and beryllium oxide have led to their use in thermal management applications. The commercial use of beryllium requires the use of appropriate dust control equipment and industrial controls at all times because of the toxicity of inhaled beryllium-containing dusts that can cause a chronic life-threatening allergic disease in some people called berylliosis. MORE INFO AT: http://astrojan.hostei.com/be8.htm _______________________________________ Le béryllium est un élément chimique de symbole Be et de numéro atomique 4. Dans le tableau périodique, il est le premier représentant des métaux alcalino-terreux. Le nom béryllium vient du grec beryllos qui désignait l'aigue-marine ou l'émeraude. Élément bivalent, le béryllium est un métal alcalino-terreux d'aspect gris acier. Il est léger, fragile et toxique. Le béryllium a le point de fusion le plus élevé de tous les métaux légers. Il est fragile, mais plus léger et six fois plus résistant que l’aluminium. Sa ductilité est approximativement d'un tiers plus grande que celle de l'acier. Il possède une excellente conductivité thermique, est non magnétique et résiste à l'acide nitrique concentré. Il est fortement perméable aux rayons X, et libère des neutrons quand il est frappé par des particules alpha, comme celles émises par le radium ou le polonium. Aux conditions normales de température et de pression, le béryllium résiste à l'oxydation quand il est exposé à l'air. Il se forme une fine couche d'oxyde qui lui donne sa capacité à rayer le verre. Dans la nature, on le trouve principalement sous forme d'oxydes ou d'aluminosilicates complexes appelés béryls, dont les représentants précieux les plus connus sont l'émeraude et l'algue-marine. On l'exploite à partir d'une trentaine de minerais (bertrandite et béryl surtout). Les principales mines mondiales sont aux États-Unis, en Chine et au Mozambique. Aucune n'est ouverte en Europe. MORE INFO AT: http://astrojan.hostei.com/be8.htm _____________________________________________

Comments (18)


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Diemamker

7:57PM | Sun, 22 February 2015

Awesome info!!!... great work!!

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magnus073

8:46PM | Sun, 22 February 2015

Magik, ce est une présentation merveilleuse et éducatif. Je ai apprécié l'apprentissage (béryllium) et ses propriétés. Merci de fournir les informations avec vos images.

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Faemike55

8:57PM | Sun, 22 February 2015

Very cool work and narrative

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RodS

9:24PM | Sun, 22 February 2015

Very cool render, and fascinating information, Real! I love this kind of stuff...

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danapommet

9:46PM | Sun, 22 February 2015

Four great POVs Réal and I like all four - also impressed with your narrative!

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jocko500

9:59PM | Sun, 22 February 2015

cool and lot of information

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peedy

11:45PM | Sun, 22 February 2015

Great render, MU! Corrie

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bebopdlx

12:09AM | Mon, 23 February 2015

Very interesting work and info.

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jayfar

1:45AM | Mon, 23 February 2015

This is beautiful Magik.

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BryceHoro

2:20AM | Mon, 23 February 2015

Ah beryllium, also very good for low current contacts, doesn't give you the click-noises in audio when connecting/disconnecting. Very nice representation.

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rayag

4:15AM | Mon, 23 February 2015

Another excellent info ! Very well done!

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Cyve

10:47AM | Mon, 23 February 2015

Merci pour les informations sur cet étonnant métal... Superbe image également mon ami !!!

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jendellas

11:23AM | Mon, 23 February 2015

Excellent & super info!! x

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DennisReed

12:26PM | Mon, 23 February 2015

cool

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UteBigSmile

12:55AM | Tue, 24 February 2015

~ GENIAL ~

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MarciaGomes

3:44PM | Tue, 24 February 2015

Fantástica obra meu amigo,interessante informação eu não sabia o que era Berílio agora voce me informou,obrigado.+++++++++++5

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ansgar2

4:27AM | Thu, 26 February 2015

Very cool...!!!

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flavia49

5:38PM | Thu, 26 February 2015

nice


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