BioTech Encyclopedia

Elements · ← Rf Rutherfordium · Sg Seaborgium →

Db Dubnium

Basic facts

SymbolDb
Atomic number105
Atomic mass268.126(no standard atomic weight: the element has no stable isotopes or characteristic natural composition; PubChem lists this isotope mass)
Group5
Period7
Blockd-block
CategoryTransition metal
Standard stateSolid
Discovered1967

Source: PubChem, Dubnium (periodic table data, retrieved 2026-10-19). Group and period follow the standard 18-column periodic table.

Biotech uses & experiments

No verified biotech applications listed yet.