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Rbl crystallizes in bcc structure in which each Rb^(+) is surrounded by eight iodide ions each of radius 2.17 Å. Find the length of one side of RbI unit cell. |
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Answer» SOLUTION :`(r_(rb^(+)))/(r_(R))`=0.732"" ? "" `r_(Rb^(+))=0.732xx2.17=1.59 Å` `asqrt(3)=2[r_(Rb^(+))+r_(I^(-))]a=(2)/(SQRT(2))[1.59+2.17]` 4.34 Å |
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