I would say the answer is A. Dimitri made the modern periodic table, not chemical symbols, and generally compounds do not have the same properties, for example water which is made of 2 gases.
<span>Their border is controlled by another nation that could cut off access to trade in times of conflict. </span>
Dar y decir: pronombres directos e indirectosDar y decir: pronombres directos e indirectos<span>Dar y decir: pronombres directos e indirectos</span>