Db
Dubnium Symbol (Db)
Dubnium is element 105 of the periodic table. Copy its symbol Db and see its atomic weight, electron configuration and physical properties.
What does Db mean?
Db is the chemical symbol for dubnium, element number 105 in the periodic table. Dubnium is a transition metal in group 5, period 7. It is a solid at room temperature and was discovered in 1967.
Codes and properties
| Chemical symbol | Db |
|---|---|
| Atomic number (Z) | 105 |
| Mass number (no standard atomic weight) | [268] |
| Group / period | 5 / 7 |
| Element category | transition metal |
| Electron configuration | [Rn]7s² 5f¹⁴ 6d³ |
| State at 20 °C | Solid |
| Oxidation states | 5, 4, 3 |
| Discovered | 1967 |
How to type Db
- Plain text: type
Db— element symbols are ordinary Latin letters, with the first letter capitalised and the second lowercase. - Subscripts in formulas: use Unicode subscript digits (₀₁₂₃₄₅₆₇₈₉) for formulas such as H₂O — copy them from the chemistry keyboard.
- LaTeX: write
\mathrm{Db}in math mode, or use the mhchem package:\ce{Db}. - HTML:
Db; for subscripts use<sub>, e.g.H<sub>2</sub>O.
Frequently asked questions
What is the chemical symbol for dubnium?
The chemical symbol for dubnium is Db.
What is the atomic number of dubnium?
Dubnium has atomic number 105, meaning each atom has 105 protons.
What is the electron configuration of dubnium?
The ground-state electron configuration of dubnium is [Rn]7s² 5f¹⁴ 6d³.
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Reference: Dubnium on PubChem (NIH)