# Arsenic ## 🧊 Arsenic · 3D (three.js) <iframe src="https://wikitube-elements.netlify.app/?el=As&embed=1" width="100%" height="620" frameborder="0" style="border:0;border-radius:12px;overflow:hidden" allowfullscreen loading="lazy" title="The Elements 3D microsim - Arsenic"></iframe> *Arsenic in the live three.js Elements explorer — drag to orbit the atom, click any tile to compare, slide the temperature.* · [▶ open full](https://wikitube-elements.netlify.app/?el=As) <!-- ELEMENTS_MICROSIM:END --> !Arsenic plate.svg *Plate 33 of 118 - animated Bohr shells, stylized per Madelung filling; engraving style per house Arcanity kit.* ## Microsim To Do *Claimable rows, house pattern. Real Wikipedia articles only.* - Gallium arsenide - semiconductor material for optoelectronics - Arsenopyrite ore - arsenic mineral extraction - Orpiment - arsenic trisulfide pigment and historical applications ## Links (Wikipedia order) <!-- injected from _registry/childlinks/Arsenic.json (2026-07-30T02:09:12Z) --> `1858_Bradford_sweets_poisoning` · `ABC_News_(Australia)` · [[Actinium]] · `Acute_promyelocytic_leukemia` · `Adamsite` · `Adenosine_triphosphate` · `Adsorption` · `Agency_for_Toxic_Substances_and_Disease_Registry` · `Agent_Blue` · `Albertus_Magnus` · `Alchemical_symbol` · `Alkali_metal` · `Alkaline_earth_metal` · `Allotropes_of_arsenic` · `Allotropy` · [[Aluminium]] · `Aluminium_arsenide` · `Aluminium_arsenide_antimonide` · `Aluminium_gallium_arsenide` · `Aluminium_indium_arsenide` · `American_Association_for_the_Advancement_of_Science` · [[Americium]] · `Ammunition` · [[Antimony]] · `Antoine-François_de_Fourcroy` · `Apoptosis` · `Aqua_Tofana` · `Aquifer` · `Argentina` · [[Argon]] · `Arsenate` · `Arsenate_reductase_(glutaredoxin)` · `Arsenic_(disambiguation)` · `Arsenic_acid` · `Arsenic_biochemistry` · `Arsenic_contamination_of_groundwater` · `Arsenic_monophosphide` · `Arsenic_pentachloride` · `Arsenic_pentafluoride` · `Arsenic_pentasulfide` · `Arsenic_pentoxide` · `Arsenic_poisoning` · `Arsenic_tetroxide` · `Arsenic_triazide` · `Arsenic_tribromide` · `Arsenic_trichloride` · `Arsenic_trifluoride` · `Arsenic_triiodide` · `Arsenic_trioxide` · `Arsenic_triselenide` · `Arsenic_trisulfide` · `Arsenical_bronze` · `Arsenide` · `Arsenide_bromide` · `Arsenide_chloride` · `Arsenide_hydride` · `Arsenide_iodide` · `Arsenide_nitride` · `Arsenide_telluride` · `Arsenidogermanate` · `Arsenidosilicate` · `Arsenidostannate` · `Arsenite` · `Arsenobetaine` · `Arsenopyrite` · `Arsenous_acid` · `Arsine` · `Arsphenamine` · [[Astatine]] · `Atacama_people` · `Atmospheric_pressure` · `Atomic_number` · `Atomic_radius` · `Automotive_battery` · [[Barium]] · `Barry_P._Rosen` · `Belgium` · [[Berkelium]] · [[Beryllium]] · [[Beta_decay]] · `Binary_phase` · `Bioaccumulation` · `Bioaugmentation` · `Bioremediation` · [[Bismuth]] · `Bismuth_arsenide` · `Bladder_cancer` · `Blister_agent` · `Block_(periodic_table)` · [[Bohrium]] · `Borate` · [[Boron]] · `Boron_arsenide` · `Boron_group` · `Botallack_Mine` · `Bottled_water` · `Brass` · `Brinell_hardness_test` · `Broiler` · [[Bromine]] · `Bronze_Age` · `Bronzing` · `Building_material` · `Bulgaria` · `Bulk_modulus` · `CAS_Registry_Number` · `CRC_Press` · `Cacodyl` · `Cacodylic_acid` · `Cadet's_fuming_liquid` · [[Cadmium]] · `Cadmium_arsenide` · [[Caesium]] · [[Calcium]] · `Calcium_arsenate` · `Calcium_arsenide` · [[Californium]] · `Cambodia` · [[Carbon]] · `Carbon_group` · `Carcinogen` · `Carcinogenesis` · [[Cerium]] · `Chalcogen` · `Chalk` · `Chao_Phraya_River` · [[Chemical_element]] · `Chemical_warfare` · `Chemical_weapon` · `China` · `Chinchorro_mummies` · [[Chlorine]] · `Chromated_copper_arsenate` · [[Chromium]] · 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`YouTube` · `Young's_modulus` · [[Ytterbium]] · [[Yttrium]] · `Yttrium(III)_arsenide` · [[Zinc]] · `Zinc_arsenide` · `Zinc_cadmium_phosphide_arsenide` · [[Zirconium]] · `Zoetis` · `Zosimos_of_Panopolis` > **Official MAIN - Chemical element, Z = 33.** Part of the Elements Canon (one canonical page per element). Infobox grounded in [Wikipedia: List of chemical elements](https://en.wikipedia.org/wiki/List_of_chemical_elements), fetched 2026-07-08. Full article: [Wikipedia: Arsenic](https://en.wikipedia.org/wiki/Arsenic). <!-- ELEMENTS_MICROSIM:BEGIN (auto-managed block - edits inside will be overwritten) --> ## Key facts (infobox) | | | |---|---| | Symbol - Z | As - 33 | | Group - Period - Block | 15 - 4 - p-block | | Atomic weight (Da) | 74.922 | | Density (g/cm3) | 5.727 | | Melting - Boiling (K) | 1090 (sublimes) - 887 | | Electronegativity (Pauling) | 2.18 | | Crustal abundance (mg/kg) | 1.8 | | Origin | primordial | | Phase (STP) | solid | | Name origin | Greek arsenikon, 'yellow arsenic' | *Bracketed weights are the mass number of the most stable isotope; values in parentheses are predictions (per the source table).* ## Story Arsenic has been known and used since ancient times, appearing in medications, pigments, and poisons in many classical civilizations. The element was first isolated in pure form around 1250 CE by Albertus Magnus, a medieval alchemist and scholar. The name derives from the Greek word "arsenikon," meaning "yellow arsenic," referring to the mineral orpiment (arsenic trisulfide) that was an important pigment in ancient art. For centuries, arsenic compounds were used as medicines despite their toxicity, and arsenic trioxide gained notoriety as a poison used in many historical poisoning cases [model-prior - verify]. Arsenic is a gray, brittle metalloid (a substance with properties between metal and nonmetal) with toxic properties at all oxidation states. It sublimes rather than melts at atmospheric pressure, transitioning directly from solid to gas [model-prior - verify]. The primary ores are arsenopyrite (iron arsenic sulfide) and realgar (arsenic sulfide), though arsenic is also obtained as a by-product of copper smelting. Historically, arsenic compounds were essential to pesticides and herbicides, though their toxicity has severely restricted their modern use [model-prior - verify]. Today, the dominant use of arsenic is in semiconductor manufacturing, particularly in gallium arsenide for optoelectronics [model-prior - verify]. In the corpus, arsenic bridges toxicology and semiconductor science. Its role as a dopant in optoelectronics connects it to gallium and the information layer, while its historical notoriety reminds us that the periodic table contains both life-giving and deadly substances—a sobering reminder that chemistry is power without moral valence. ## Corpus connections - R.E.A.C.T.I.O.N. - the Chemistry hub - Centers of Excellence Portal - [[Technetium|Technetium - the element made before found]] - the canon's patron - and Technitium, the School - Technate Expansion schema - arsenic's critical role in semiconductor doping and optoelectronics ## Vocational-Technical Semiotics The element speaks the canon's shared signs: the periodic table cell (As, group 15, period 4), isotope notation, and hazard pictograms ghs where handling demands it. ## Sources Infobox: [en.wikipedia.org/wiki/List_of_chemical_elements](https://en.wikipedia.org/wiki/List_of_chemical_elements) (fetched 2026-07-08); etymology per the same table's notes. Story sources to be added at enrichment. ## Navigation - Canon: Elements Canon index - neighbors by Z: [[Germanium|Germanium (32)]] - [[Selenium|Selenium (34)]] - R.E.A.C.T.I.O.N. - Centers of Excellence ## Wikipedia : Wikitube **Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Arsenic) : [Wikitube](https://en.wikitube.io/wiki/Arsenic) ## Previous hub tags Tree parents: [[Helium]] · [[Hydrogen]] · [[Oxygen]]. Legacy hubs: none. --- *Sources: 1 legacy note. Minted wave 1, 2026-07-30 (v1.6 order).*