Se (Selenium)

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     Selenium burns in air, is unaffected by water and reacts with concentrated nitric acid and alkalis.

Nama lain (trademark, branding etc.)

Selenium, Selen, Selenij, Selen - r, Selenio, Селен, 

Spesifikasi Produk

Overview of Selenium
Atomic Number 34
Group 16
Period 4
Series Nonmetals
Relative Atomic Mass (12C=12.000)  78.96
Boiling Point 958K 685°C 1265°F
Melting Point 494K 221°C 430°F
Density/kg m-3  4790 (293K)
Ground State Electron Configuration  [Ar]3d104s24p4
Electron Affinity(M-M-)/kJ mol-1  -195
Discoverer Jöns J. Berzelius
Discovery Location Stockholm Sweden
Discovery Year 1817
Name Origin Greek: Selênê (Moon)


     Selenium is both photovoltaic (converts light to electricity) and photoconductive (electrical resistance decreases with increased illumination). Selenium is therefore useful in photocells and solar cells. It can also convert a.c. electricity to d.c. electricity, so is extensively used in rectifiers. It is used by the glass industry, and to make stainless steel. It is also used in photocopiers.

Bahan Baku

Selenium is a chemical element with symbol Se and atomic number 34. It is a nonmetal with properties that are intermediate between those of its periodic table column-adjacent chalcogen elements sulfur and tellurium. It rarely occurs in its elemental state in nature, or as pure ore compounds.

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