110Ds[281]
Darmstadtium (Ds)
Element 110 · Transition metal
Darmstadtium (Ds) is a chemical element with atomic number 110. It is classified as a transition metal in period 7, group 10 of the periodic table (the d-block). Its most stable known isotope has mass number 281 and its ground-state electron configuration is [Rn] 5f¹⁴ 6d⁸ 7s². Its properties are largely predicted, as only a few atoms have ever been produced.
Darmstadtium facts
| Atomic number (Z) | 110 |
|---|---|
| Symbol | Ds |
| Mass number of most stable isotope | [281] |
| Category | Transition metal |
| Group | 10 |
| Period | 7 |
| Block | d-block |
| Electron configuration | [Rn] 5f¹⁴ 6d⁸ 7s² |
| Electronegativity (Pauling) | — |
| State at 20 °C | Unknown (synthetic) |
| Protons / electrons | 110 / 110 |
| Neutrons (most common isotope, approx.) | 171 |
| Molar mass | 281 g/mol |