Polonium crystallizes in a simple cubic structure. The edge of the unit cell is \( 0.236 \mathrm...

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Polonium crystallizes in a simple cubic structure. The edge of the unit cell is \( 0.236 \mathrm{~nm} \). What is the radius of the polonium atom?
(a) \( 0.144 \mathrm{~nm} \)
(b) \( 0.156 \mathrm{~nm} \)
(c) \( 0.118 \mathrm{~nm} \)
(d) \( 0.102 \mathrm{~nm} \)
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