The \( \mathrm{C}-\mathrm{C} \) and \( \mathrm{Si}-\mathrm{C} \) interatomic distances are \( 15...

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The \( \mathrm{C}-\mathrm{C} \) and \( \mathrm{Si}-\mathrm{C} \) interatomic distances are \( 154 \mathrm{pm} \) and \( 188 \mathrm{pm} \). The atomic radius of \( \mathrm{Si} \) is
(1) \( 77 \mathrm{pm} \)
(2) \( 94 \mathrm{pm} \)
(3) \( 114 \mathrm{pm} \)
(4) \( 111 \mathrm{pm} \)
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