# Hydrogen Hydrogen is the lightest and most abundant chemical element, a diatomic ignoble gas whose single proton and electron make it the reference case for atomic structure, and whose [[Combustion|combination]] with [[Oxygen]] powers the oxyhydrogen reaction family at the heart of the Thury spine. <!-- LEGACYSIM:BEGIN v1.5 — generated by g03_mint_wave.py; three.js first; do not hand-edit inside --> ## Microsims (promoted from legacy — three.js first) ### 🧊 Hydrogen · 3D (three.js) <iframe src="https://wikitube-elements.netlify.app/?el=H&embed=1" width="100%" height="620" frameborder="0" style="border:0;border-radius:12px;overflow:hidden" allowfullscreen loading="lazy" title="The Elements 3D microsim - Hydrogen"></iframe> *Hydrogen 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=H) <!-- ELEMENTS_MICROSIM:END --> !Hydrogen plate.svg *Plate 1 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.* - Hydrogen bond - intermolecular hydrogen bonds and their role in water's anomalous density - Haber process - hydrogen synthesis, nitrogen fixation, and global fertilizer production - Electrolysis of water - hydrogen production and energy storage via water splitting - Hydrogen economy - hydrogen as an energy carrier and fuel of the future - Isotopes of hydrogen - protium, deuterium, and tritium in nature and industry <!-- LEGACYSIM:END --> <!-- GIFPLATE:BEGIN v1.0 g16 — Commons hotlink; do not hand-edit inside --> ## Images <figure class="wt-gifplate"> <img src="https://commons.wikimedia.org/wiki/Special:FilePath/Atom_animation.gif" alt="Atom Structure" loading="lazy" decoding="async"> <figcaption><strong>Atom Structure</strong> — Show hydrogen atom structure and electron shell dynamics.<br> <span class="wt-credit">Wikimedia Commons &middot; <strong>licence pending verification</strong> (run <code>g17_gif_verify.py</code> on a networked lane) &middot; <a href="https://commons.wikimedia.org/wiki/File:Atom_animation.gif">Details</a></span></figcaption> </figure> *The hub concept of [[PORTAL_Hydrogen]]. Still companion to the 1 live microsim above — §15 keeps the player first, the plate sits in the image slot.* <!-- GIFPLATE:END --> ## Reveal %%REVEAL:three%% --- *Concept aligned with [Wikipedia](https://en.wikipedia.org/wiki/Hydrogen); adapted text, where present, is licensed [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/).* ## Overview One proton fixes its [[Atomic_number|atomic number]] at 1; the lone electron makes the [[Atom|atom]] exactly solvable, the textbook case of [[Quantum_mechanics|quantum mechanics]] and the anchor of the [[Abundance_of_the_chemical_elements|abundance of the chemical elements]]. It leads the [[Alkali_metal|alkali-metal]] column while behaving like no metal at [[Standard_temperature_and_pressure|standard temperature and pressure]], and its [[Phase_(matter)|phases]] run from cryogenic liquid near its [[Critical_point_(thermodynamics)|critical point]] — the province of [[Cryogenics|cryogenics]] — to metallic states conjectured deep in planets. As a [[Primordial_nuclide|primordial nuclide]] it is the fuel of stars and the ancestor, through fusion, of [[Helium|helium]]; on Earth it partners [[Oxygen|oxygen]] in water and stores energy for flight and grid alike, its every [[Acid|acid]]-base and redox move counted against the ledger of the [[Atmosphere_of_Earth|atmosphere of Earth]]. ## Wikipedia : Wikitube **Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Hydrogen) : [Wikitube](https://en.wikitube.io/wiki/Hydrogen) ## Previous hub tags Hubs: `Life_Physics`. Portals: [[PORTAL_Thury_Hydrodynamics_Apex_Spine]], [[PORTAL_Hydrogen]].