Symbol
Db
Atomic Number
105
Atomic Mass
268
Protons
105
Neutrons
163
Electrons
105
Type
Transition Metal
Isotopes
Dubnium-268
Discovery Year
1967
Discovered By
G. N. Flerov and others
Group
5
Period
7
Boiling Point
Unknown
Melting Point
Unknown
Electron Configuration
[Rn] 7s² 5f¹⁴ 6d³
Density (g/cm³)
18.96
Crystal Structure
Unknown
Magnetism
Unknown
Abundance in Earth's Crust
Trace
Phase at Room Temperature
Solid