रेडॉन

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is lekh ka punarikshan evan sampadan hona avashyak hai. ap isamean sahayata kar sakate haian. "sujhav"

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thumb|red aaun ki chamak (aangrezi:Radon) red aaun avart sarani ka ek rediyosakriy tatv hai. red aaun ka pratikanusar 'Rn' tatha paramanu sankhya 86 hoti hai. red aaun ka ilektr aaunik vinyas 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ hota hai. red aaun ka upayog rediyotherepi ke roop mean kainsar ke ilaj mean hota hai.

panne ki pragati avastha

adhar

prarambhik

madhyamik

poornata

shodh

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sanbandhit lekh

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