Polonium adopts cubic structure with edge length of cube being \( 0.336 \mathrm{~nm} \). The dis...

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Polonium adopts cubic structure with edge length of cube being \( 0.336 \mathrm{~nm} \). The distance between the polonium atoms which lie at the corners along the body diagonal is
(1) \( 0.336 \mathrm{~nm} \)
(2) \( 0.291 \mathrm{~nm} \)
(3) \( 0.582 \mathrm{~nm} \)
(4) \( 0.481 \mathrm{~nm} \)
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