Periodic table of the elements
RutherfordiumDubniumSeaborgium
105
Db
Dubnium
(268)
2
8
18
32
32
11
2
105
Db
Dubnium
(268)
2
8
18
32
32
11
2
General
NameDubnium
SymbolDb
Number105
Chemical seriesTransition elements
Group / Period5 / 7
Blockd-block
CAS registry number53850-35-4

Dubnium is a radioactive element

Physical properties
Statesolid
Density g/cm3
Melting point
Boiling point
Critical point

Atomic properties
Atomic Weight(268) g/mol
Crystal structure
Electronegativity
Atomic radius
Atomic radius (calculated)
Electron configuration[Rn] 5f14 6d3 7s2
Electrons per shell2, 8, 18, 32, 32, 11, 2
Number of protons105
Number of neutrons157

Other languages
SpanishDubnio
PortugueseDúbnio
FrenchDubnium
GermanDubnium
ItalianDubnio
RussianДубний
PolishDubn
Chinese
Arabicدبنيوم
TurkishDubniyum
DutchDubnium


Periodic table of the elements
RutherfordiumDubniumSeaborgium