Molibdènum: Béda antara owahan

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Larik 42:
{{Elementbox_isotopes_stable | mn=92 | sym=Mo | na=14.84% | n=50 }}
{{Elementbox_isotopes_decay | mn=93 | sym=Mo
| na=[[synthetic radioisotope|syn]] | hl=4&times;104×10<sup>3</sup> [[year|y]]
| dm=[[electron capture|ε]] | de=- | pn=93 | ps=[[niobium|Nb]] }}
{{Elementbox_isotopes_stable | mn=94 | sym=Mo | na=9.25% | n=52 }}
Larik 54:
| dm2=[[gamma ray|γ]] | de2=0.74, 0.36,<br />0.14| pn2= | ps2=- }}
{{Elementbox_isotopes_decay | mn=100 | sym=Mo
| na=9.63% | hl=7.8&times;108×10<sup>18</sup> [[year|y]]
| dm=[[double beta decay|β<sup>-</sup>β<sup>-</sup>]] | de=3.04 | pn=100 | ps=[[ruthenium|Ru]] }}
{{Elementbox_isotopes_end}}
Larik 93:
Though molybdenum is found in such [[mineral]]s as [[wulfenite]] ([[lead|Pb]]Mo[[oxygen|O]]<sub>4</sub>) and [[powellite]] ([[calcium|Ca]]Mo[[oxygen|O]]<sub>4</sub>), the main commercial source of molybdenum is [[molybdenite]] (Mo[[sulfur|S]]<sub>2</sub>). Molybdenum is mined as a principal ore, and is also recovered as a byproduct of copper and tungsten mining.<ref name="CRCdescription" /> Large mines in [[Colorado]] ([[Climax, Colorado|Climax]]) and in [[British Columbia]] yield [[molybdenite]], while many [[porphyry copper]] deposits such as the [[Chuquicamata]] mine in northern [[Chile]] produce molybdenum as a byproduct of copper mining. The Knaben mine in southern Norway was opened in 1885, making it the first molybdenum mine. It remained open until 1973.
 
Molybdenum is the 42nd-most-abundant element in the universe, and the 25th-most-abundant element in Earth's oceans, with an average of 10.8&nbsp;mt/km³.<ref name="Nostrand" /> The Russian [[Luna 24]] mission discovered a single molybdenum-bearing grain (1 &times;× 0.6&nbsp;µm) in a [[pyroxene]] fragment taken from [[Mare Crisium]] on the [[Moon]].<ref>{{cite web | url=http://www.minsocam.org/msa/AmMin/TOC/Abstracts/2002_Abstracts/Jan02_Abstracts/Jambor_p181_02.pdf | title=American Mineralogist, Volume 87, pages 181-184, 2002 | accessdate=2007-04-09}}</ref>
 
A side product of molybdenum mining is [[rhenium]]. As it is always present in small varying quantities in molybdenite, the only commercial source for rhenium is molybdenum mines.
Larik 173:
{{Commons|Molybdenum}}
{{wiktionary|molybdenum}}
* [http://www.webelements.com/webelements/elements/text/Mo/key.html WebElements.com] &mdash; Molybdenum
* [http://www.imoa.info/index.html International Molybdenum Association] &mdash; Main page
 
{{clear}}
Larik 180:
{{kimia-stub}}
 
[[CategoryKategori:Unsur kimia]]
[[CategoryKategori:Dietary minerals]]
[[CategoryKategori:Molybdenum|*]]
[[CategoryKategori:Logam transisi]]
[[CategoryKategori:Material refractori]]
 
[[af:Molibdeen]]
Larik 200:
[[da:Molybdæn]]
[[de:Molybdän]]
[[dv:މޮލިބްޑިނަމް]]
[[el:Μολυβδένιο]]
[[en:Molybdenum]]