The set of elements that differ in mutual relationship from those of the other sets is: (a) \( \...

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The set of elements that differ in mutual relationship from those of the other sets is:
(a) \( \mathrm{Li}-\mathrm{Mg} \)
(b) \( \mathrm{B}-\mathrm{Si} \)
(c) \( \mathrm{Be}-\mathrm{Al} \)
(d) \( \mathrm{Li}-\mathrm{Na} \)
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