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Byju's Answer

Standard XII

Chemistry

Diagonal Relationship between Li and Mg

The ionic rad...

Question

The ionic radii of $K^{+} a n d B r^{-}$ ions are 133 and 195 pm. The edge length of the unit cell of KBr is

328 pm

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656 pm

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299 pm

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425.5 pm

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Solution

The correct option is B 656 pm
$2 r^{+} + 2 r^{-} 2 (133 + 195) = 656 p m$

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Similar questions

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The ionic radii of K+ and Br− ions are 133 and 195 pm. The edge length of the unit cell of KBr is

The correct option is B 656 pm2r++2r−2(133+195)=656pm

The ionic radii of $K^{+} a n d B r^{-}$ ions are 133 and 195 pm. The edge length of the unit cell of KBr is

The correct option is B 656 pm
$2 r^{+} + 2 r^{-} 2 (133 + 195) = 656 p m$