// MATTER · ELEMENT 105 / 118atoms.no/elements
Db105
Dubnium
Db·Z 105·Transition Metal·268·⭕ 1A · G♯ Minor
▸ The reading
interpretive · artDubnium's name is a peace treaty — IUPAC's settlement of the decades-long Berkeley–Dubna naming war over the transfermium elements, awarding this seat to the Russian institute. Single-atom chemistry confirms it behaves like tantalum and niobium. An element whose diplomatic history is longer than any sample's lifetime.
The science below is cited as science; the symbolic layers are flagged as interactive art.
⚜ Periodic Frequency
1AG♯ Minor
a seat struck in brass — testimony, not prediction
the seat has its own room on ⭕ THE OVAL TABLE — tap the code
▸ The lenses
▸ Discovery
Berkeley (Ghiorso et al.) and Dubna (Flerov et al.) — independent, contested claims · United States / Soviet Union · 1970
▸ Stellar origin
Human-madeGroup-5 transactinide produced by heavy-ion fusion. Longest-lived isotope half-life: about 28 hours.
▸ Reactivity
Chemistry resembles tantalum and niobium, confirming group-5 behaviorSingle-atom gas-phase chemistry experiments showed Db acts like its row-5 homologue Ta — relativistic effects haven't broken the pattern yet.
▸ Applications
- Confirming periodic trends past actinides
- Heavy-element chemistry research
- (No commercial applications)
- (No practical bulk uses)
▸ Curiosity
Named for the Joint Institute for Nuclear Research in Dubna, Russia — IUPAC's compromise after a decades-long Berkeley-Dubna naming war.
▸ Related readings
a resonance drawn between readings — not a claim that they share an origin.
Group 5TaTantalum
Period 7RfRutherfordiumSgSeaborgium
d-blockRfRutherfordiumSgSeaborgium
Adjacent ZRfRutherfordiumSgSeaborgium