arsenikki

Could you clarify what you mean by arsenikki? There is no widely recognized topic by that exact name in major reference works. It might be a misspelling, a term from a specific language, a fictional concept, a brand, or a niche subject. If you can specify the intended context—whether it refers to a chemical concept related to arsenic, a cultural or linguistic term, a work of fiction, or a particular company or project—I can produce a concise, neutral wiki-style article under 300 words. If you meant arsenic, arsenic compounds, or a different established term, I can write that instead.