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  5. The Solid State / ठोस प्रावस्था

12th Class Chemistry The Solid State / ठोस प्रावस्था

  • question_answer 37)
    Niobium crystallizes in body centered cubic structure. If density is 8.55 g cm-3, calculate atomic radius of niobium using its atomic mass 93 u.  

    Answer:

    d = 855 g cm?3, z = 2 (bcc), M = 93 g mol?1    or  In bcc, atomic radius (r) = 1429 nm.  


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