यूरेनियम

भारत डिस्कवरी प्रस्तुति
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chitr:Icon-edit.gif is lekh ka punarikshan evan sampadan hona avashyak hai. ap isamean sahayata kar sakate haian. "sujhav"

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thumb|220px|yooreniyam yooreniyam avart sarani ki ek aantarvarti shreni, aiktinaid shreni ka tritiy tatv hai. is shreni mean aantarik ilektr aauniy parikaksha (5 parikaksha) ke ilektr aaun sthan lete haian. kuchh samay pahale tak is tatv ko chhathe aantarvarti samooh ka aantim tatv mana jata tha. yooreniyam gahare kale rang ka pindo ke roop mean milata hai. yooreniyam ke pramukh ayask haian- pichablaid, samaraskait tatha thoriyanait.

itihas

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

1896 ee. mean henari bekvarel ne yooreniyam mean rediyoan aiktivata ki khoj ki. usake anusandhanoan se jnat hua ki yah gun yooreniyam ke sab yaugikoan mean tatha kuchh any ayaskoan mean bhi vartaman hai. in nirikshanean ke phalasvaroop hi pichableand ayask se rediyam ki aitihasik khoj sanbhav ho saki thi.

upasthiti

yooreniyam prithvi ki sanpoorn oopari satah par phaila hai. aisa anuman hai ki prithvi ki pap di mean yooreniyam ki matra lagabhag 1014 tan hai. is prakar isaki matra lagabhag 1 gram shail mean 4x10-6 hogi. isaki matra amliy shail (jaise grainait) mean adhik aur kshariy shail (jaise besalt) mean kam rahati hai. samudri jal mean bhi yooreniyam upasthit hai, yadyapi samudri jal mean isaki matra shail mean upasthit matra ka 1/2000 vaan bhag hai. itane vistar se phaile hone ke pashchath‌ bhi isake keval do mukhy ayask jnat haian, ek pichableand aur doosara k aaurnotait.

prapti sthan

bharat mean yooreniyam ki prapti dharava d evan arkiyan shreni ki shailoan, pegmetaits, monajait baloo tatha chairalait se hoti hai. isaki prapti ke pramukh kshetr haian- jharakhand mean sianhabhoom tatha uttari bhag ke abhrak kshetr, karnatak mean yedayoor ke samip, aandhr pradesh mean nellaur zile ki saankar khane, rajasthan mean udayapur ka simavarti kshetr, keral tatha tamilanadu rajyo ka samudratatiy monajait baloo kshetr adi.


panne ki pragati avastha
adhar
prarambhik
madhyamik
poornata
shodh

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tika tippani aur sandarbh

bahari k diyaan

sanbandhit lekh

avart sarani
H   He
Li Be   B C N O F Ne
Na Mg   Al Si P S Cl Ar
K Ca   Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr   Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
Cs Ba La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr Rf Db Sg Bh Hs Mt Ds Rg Cn Uut Uuq Uup Lv Uus Uuo
kshar dhatuean kshariy parthiv dhatuean lenthenaidas aiktinaidas sankraman dhatuean sankramanoparaant dhatu upadhatuean any adhatu hailojans akriy gais

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varnamala kramanusar lekh khoj

a   a    i    ee    u    oo    e    ai    o   au    aan    k   kh    g    gh    n    ch    chh    j    jh    n    t    th    d   dh    n    t    th    d    dh    n    p    ph    b    bh    m    y    r    l    v    sh    sh    s    h    ksh    tr    jn    rri    rri    aau    shr   aah

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