105
268 u
Db
Dubnium
Transition Metal
Atomic Structure
Physical State
Group
5
Period
7
Block
d
Electron Configuration
[Rn] 5f¹⁴ 6d³ 7s²
Physical Properties
Atomic Mass:
268 u
Electronegativity:
N/A
Atomic Radius:
N/A
Ionization Energy:
N/A
Density:
29.3 g/cm³
Melting Point:
N/A
Boiling Point:
N/A
Historical Information
Discovered By:
Joint Institute for Nuclear Research
Year Discovered:
1967