105
Db
Dubnium
Transition metal period 7 group 5 d-block discovered: 1967
As a chemical element
Properties of the atom — they do not depend on what substance it is part of.
- Atomic number
- 105
- Atomic mass
- 268.126 a.m.u.
- Electron configuration
- [Rn]7s2 5f14 6d3
- Oxidation states
- 5, 4, 3
As a simple substance
Properties of the substance these atoms form under ordinary conditions.
- State at 25 °C
- Solid