Kimiyya Tsarin lokaci
Chemical & Properties na jiki na Helium
Cibiyar Atomic Helium : 2
Halium Symbol : Ya
Hulum Atomic Weight : 4.002602 (2)
Binciken Helium: Janssen, 1868, wasu mawallafi sun ce Sir William Ramsey, Nils Langet, PT Cleve 1895
Hulɗar Kwamfutar Kirar Helium: 1s 2
Maganar Maganar: Girkanci: helios, rana. An fara gano Helium a matsayin sabon layi a yayin da rana ta yi.
Isotopes: 7 anasotopes na helium da aka sani.
Properties: Helium yana da haske sosai, inert, gas marar launi.
Helium yana da tushe mafi ƙasƙanci na kowane abu. Abin sani kawai ruwa wanda ba za'a iya karfafawa ta hanyar rage yawan zafin jiki ba. Ya rage ruwa har zuwa cikakkiyar nau'i a matsanancin matsalolin, amma za'a iya ƙarfafa shi ta hanyar kara matsa lamba. Halin zafi na helium gas yana da yawa. Yawan tudu na helium a maimaitaccen tafasa yana da mahimmanci, tare da tururi yana fadada ƙwarai lokacin da mai tsanani zuwa dakin zafin jiki . Kodayake helium yana da basirar zero, yana da wani rauni mai haɗuwa da wasu abubuwa.
Amfani: An yi amfani da Helium a binciken binciken cryogenic domin tafasaccen zane yana kusa da kusan zane . An yi amfani dashi a cikin binciken binciken rashin karuwa, kamar yadda aka yi amfani da iskar gas don ingancin arc, a matsayin gas mai karewa wajen samar da lu'ulu'u na silicon da germanium da samar da titanium da zirconium, don yin amfani da man fetur na ruwa mai amfani, don amfani a yanayin hoton magnetic (MRI) a matsayin sanyaya matsakaici don makaman nukiliya reactors, kuma a matsayin gas ga supersonic iska tunnels.
Ana amfani da cakuda helium da iskar oxygen a matsayin yanayi na wucin gadi don nau'o'i da wasu masu aiki a karkashin matsin. Helium ana amfani da shi don cika balloons da blimps.
Sources: Banda ga hydrogen, helium shine mafi yawan nauyin a duniya. Yana da muhimmin abu a cikin proton-proton amsa kuma carbon sake zagayowar , wanda asusu na makamashi na rana da taurari.
Ana fitar da Helium daga iskar gas. Gaskiyar ita ce, duk gas na gas yana dauke da akalla yawan adadin helium. Samun hydrogen cikin helium shine tushen samar da makamashi na hydrogen. Helium abu ne mai rushewa na abubuwa masu rediyo, don haka an samo shi a cikin uranium, radium, da sauran abubuwa.
Ƙididdigar Ƙira: Nau'in Gas ko Inert Gas
Hanyar Amfani: Gas
Density (g / cc): 0.1786 g / L (0 ° C, 101.325 kPa)
Density Liquid (g / cc): 0.125 g / mL (a tafkin ta )
Ruwan Ƙasa (° K): 0.95
Boiling Point (° K): 4.216
Ƙari mai mahimmanci : 5.19 K, 0.227 MPa
Atomic Volume (cc / mol): 31.8
Ionic Radius : 93
Ƙwararren Heat (@ 20 ° CJ / g mol): 5.188
Heat of Fusion : 0.0138 kJ / mol
Evaporation Heat (kJ / mol): 0.08
First Ionizing Energy (kJ / mol): 2361.3
Lattice Tsarin: Haɗakarwa
Lattice C / A Ratio: 1.633
Tsarin Cristal : Ƙaƙƙasaccen haɗari
CAS rajista lambar: 7440-59-7
Sources: IUPAC (2009), Laboratory National (Alamar Labaran Launi na Los Alamos (2001), Kamfanin Crescent Chemical Company (2001), Littafin Jagora na Chemistry na Lange (1952) Atomic Energy Agency ENSDF database (Oktoba 2010)
Tambayoyi: Shirye-shiryen don gwada ilimin ilimin ku na helium ? Ɗauki Tambayoyi na Helium Facts.
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