Roentgenium: ke revisions ke biich ke antar
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Khatta Paani (Baat | yogdaan) No edit summary |
Khatta Paani (Baat | yogdaan) No edit summary |
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Rekha 29:
'''Roentgenium''' ek [[chemical element]] hae, jiske chemical symbol '''Rg''', [[atomic number]] 111 aur atomic mass 281 hae. Ii ek [[badalte dhaatu]] (Transition metal) hae. Iske 1994 me pawa gais rahaa aur iske naam [[Germany] ke Physicist, [[Wilhelm Conrad Röntgen]], ke honour me rakkhaa gais hae.
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