यूरेनियम  हिन्दी देवनागरी में पढ़ें।

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yooreniyam

yooreniyam avart sarani ki ek antarvarti shreni, aiktinaid shreni ka tritiy tatv hai. is shreni men antarik ilektraauniy parikaksha (5 parikaksha) ke ilektraaun sthan lete hain. kuchh samay pahale tak is tatv ko chhathe antarvarti samooh ka antim tatv mana jata tha. yooreniyam gahare kale rng ka pindo ke roop men milata hai. yooreniyam ke pramukh ayask hain- pichablaid, samaraskait tatha thoriyanait.

itihas

yooreniyam tatv ki khoj 1789 ee. men klaprot dvara pichablend namak ayask se huee. usane ne tatv ka nam kuchh varsh pahale gyat yoorenas grah ke adhar par yooreniyam rakha. is khoj ke 52 varsh pashchath‌ peligat ne 1841 ee. men yah pradarshit kiya ki klaprot dvara khoja gaya padarth yooreniyam tetrakloraid ke potaishiyam dvara apachayan se yooreniyam dhatu taiyar ki.

1896 ee. men henari bekvarel ne yooreniyam men rediyon aiktivata ki khoj ki. usake anusndhanon se gyat hua ki yah gun yooreniyam ke sab yaugikon men tatha kuchh any ayaskon men bhi vartaman hai. in nirikshanen ke phalasvaroop hi pichablend ayask se rediyam ki aitihasik khoj snbhav ho saki thi.

upasthiti

yooreniyam prithvi ki snpoorn oopari satah par phaila hai. aisa anuman hai ki prithvi ki papadi men yooreniyam ki matra lagabhag 1014 tan hai. is prakar isaki matra lagabhag 1 gram shail men 4x10-6 hogi. isaki matra amliy shail (jaise grainait) men adhik aur kshariy shail (jaise besalt) men kam rahati hai. samudri jal men bhi yooreniyam upasthit hai, yadyapi samudri jal men isaki matra shail men upasthit matra ka 1/2000 van bhag hai. itane vistar se phaile hone ke pashchath‌ bhi isake keval do mukhy ayask gyat hain, ek pichablend aur doosara kaaurnotait.

prapti sthan

bharat men yooreniyam ki prapti dharavad evn arkiyan shreni ki shailon, pegmetaits, monajait baloo tatha chairalait se hoti hai. isaki prapti ke pramukh kshetr hain- jharakhand men sinhabhoom tatha uttari bhag ke abhrak kshetr, karnatak men yedayoor ke samip, andhr pradesh men nellaur zile ki sankar khane, rajasthan men udayapur ka simavarti kshetr, keral tatha tamilanadu rajyo ka samudratatiy monajait baloo kshetr adi.


panne ki pragati avastha
adhar
prarambhik
madhyamik
poornata
shodh

tika tippani aur sndarbh

bahari kadiyan

snbndhit lekh