105
Db
Dubnium
Dubnium
Dubnium (Db)
Transition Metals · Solid · Period 7 · Group 5
Element Properties
- Atomic Number
- 105
- Symbol
- Db
- Atomic Mass
- 268.126
- Category
- Transition Metals
- Standard State
- Solid
- Period
- 7
- Group
- 5
- Electronegativity
- —
- Atomic Radius
- —
- Ionization Energy
- —
- Electron Affinity
- —
- Oxidation States
- 5, 4, 3
- Melting Point
- —
- Boiling Point
- —
- Density
- —
- Electron Configuration
- [Rn]7s2 5f14 6d3
- Year Discovered
- 1967
[Rn]7s2 5f14 6d3
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Frequently asked questions
What is the atomic number of Dubnium?
The atomic number of Dubnium is 105, which equals the number of protons in its nucleus.
What is the atomic mass of Dubnium?
The atomic mass of Dubnium is approximately 268.126 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Dubnium?
The electron configuration of Dubnium is [Rn]7s2 5f14 6d3.
Where is Dubnium in the periodic table?
Dubnium is located in period 7, group 5.
When was Dubnium discovered?
Dubnium was discovered in 1967.