arseeni

Arseeni is a fictional chemical element that appears in science fiction, fantasy, and speculative world-building. The name is typically used to evoke a link with arsenic while signaling its status as a non-real substance in the universe of a given work. Because it is not part of the real periodic table, its properties vary by author and setting.

In different depictions, Arseeni is described as a metalloid or light metal with a range of oxidation states and, in some cases, semiconducting behavior. Some authors portray it as reactive yet stable enough to form a variety of compounds with chalcogens and halogens, while others imagine it as a volatile gas or a dense solid with unusual crystalline forms. The associated chemistry is often tailored to suit the narrative, giving Arseeni a distinctive role in technology, magic systems, or both.

Occurrence and production are likewise variable. Arseeni may be shown as a naturally occurring element in deep-earth deposits or meteorites, or it may be produced synthetically in advanced laboratories or space-faring colonies. Its rarity or abundance is used to influence plot elements such as trade, technology access, or geopolitical power.

Applications and significance within fiction often center on advanced technologies, such as next-generation semiconductors, energy storage materials, catalysts, or exotic propulsion components. In some settings, Arseeni also appears in magical or alchemical systems, where its fictional properties enable unique reactions or effects.

Safety and handling are commonly described in terms similar to real-world toxic elements. Arseeni compounds may be portrayed as poisonous or hazardous, requiring strict containment, monitoring, and protective equipment in industrial contexts. As with any fictional element, the exact characteristics of Arseeni are defined by the world it inhabits.