Rutherfordium - Wikiparency

# Rutherfordium ## 🧊 Rutherfordium · 3D (three.js) <iframe src="https://wikitube-elements.netlify.app/?el=Rf&embed=1" width="100%" height="620" frameborder="0" style="border:0;border-radius:12px;overflow:hidden" allowfullscreen loading="lazy" title="The Elements 3D microsim - Rutherfordium"></iframe> *Rutherfordium 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=Rf)  !Rutherfordium plate.svg *Plate 104 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.* - Superheavy element - the Z > 103 frontier that Rutherfordium begins - Particle accelerator - the machine needed to synthesize elements beyond lawrencium - Atomic nucleus - Rutherford's discovery, made conceptually real - Nuclear chemistry - the discipline governing superheavy element behavior ## Links (Wikipedia order)  `Aaldert_Wapstra` · [[Actinium]] · `Albert_Ghiorso` · `Alkali_metal` · `Alkaline_earth_metal` · [[Alpha_decay]] · [[Aluminium]] · [[Americium]] · `Ammonia` · [[Antimony]] · [[Argon]] · [[Arsenic]] · [[Astatine]] · `Atomic_nucleus` · `Atomic_number` · `Atomic_radius` · `Australian_National_University` · [[Barium]] · [[Berkelium]] · [[Beryllium]] · [[Beta_decay]] · [[Bismuth]] · `Block_(periodic_table)` · `Bloomberg_Businessweek` · [[Bohrium]] · [[Boiling_point]] · [[Boron]] · `Boron_group` · [[Bromine]] · `CAS_Registry_Number` · [[Cadmium]] · [[Caesium]] · [[Calcium]] · `California` · [[Californium]] · [[Carbon]] · `Carbon-12` · 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Infobox grounded in [Wikipedia: List of chemical elements](https://en.wikipedia.org/wiki/List_of_chemical_elements), fetched 2026-07-08. Full article: [Wikipedia: Rutherfordium](https://en.wikipedia.org/wiki/Rutherfordium).  ## Key facts (infobox) | | | |---|---| | Symbol - Z | Rf - 104 | | Group - Period - Block | 4 - 7 - d-block | | Atomic weight (Da) | [267] | | Density (g/cm3) | (17) | | Melting - Boiling (K) | (2400) - (5800) | | Electronegativity (Pauling) | - | | Crustal abundance (mg/kg) | - | | Origin | synthetic | | Phase (STP) | unknown | | Name origin | Ernest Rutherford | *Bracketed weights are the mass number of the most stable isotope; values in parentheses are predictions (per the source table).* ## Story Rutherfordium was first synthesized in 1966 at the Joint Institute for Nuclear Research in Dubna, Russia, through bombardment of plutonium-244 with neon-22 nuclei. The element is named for Ernest Rutherford, the New Zealand physicist who split the atom and discovered the atomic nucleus—the foundational experimental proof that atoms have internal structure. Rf-267 has a half-life of approximately 1.3 hours [model-prior - verify], making it one of the first transuranium elements whose nuclear chemistry could be partially observed. Rutherfordium is the first member of the transactinide series (superheavy elements, Z > 103), beginning group 4 of period 7. Its chemistry is predicted to resemble that of hafnium and zirconium, though the extreme relativistic effects at this atomic number may distort chemical behavior [model-prior - verify]. Like its predecessors in the synthetic arc, Rutherfordium exists only in particle-accelerator laboratories, each nucleus surviving seconds at most—knowledge made through observation of nuclear decay rather than bulk chemistry. The naming honors Rutherford's pivotal discovery of nuclear structure, the insight that made all synthetic element creation conceivable. Technetium proved prediction right; Rutherfordium stands as monument to the scientist whose experiments made the nucleus itself real. ## 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 - [Ernest Rutherford](https://en.wikipedia.org/wiki/Ernest_Rutherford) - discoverer of the atomic nucleus and founder of nuclear physics ## Vocational-Technical Semiotics The element speaks the canon's shared signs: the periodic table cell (Rf, group 4, period 7), 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: [[Lawrencium|Lawrencium (103)]] - [[Dubnium|Dubnium (105)]] - R.E.A.C.T.I.O.N. - Centers of Excellence ## Wikipedia : Wikitube **Strict pair:** [Wikipedia](https://en.wikipedia.org/wiki/Rutherfordium) : [Wikitube](https://en.wikitube.io/wiki/Rutherfordium) ## Previous hub tags Tree parents: [[Helium]] · [[Hydrogen]] · [[Oxygen]]. Legacy hubs: none. --- *Sources: 1 legacy note. Minted wave 1, 2026-07-30 (v1.6 order).*