Named for the discoverer of X-rays, and predicted to be chemically like gold.
- Atomic number
- 111
- Atomic mass
- [280] u
- Phase
- Unknown
- Electron configuration
- [Rn] 5f¹⁴ 6d⁹ 7s²
- Melting point
- —
- Boiling point
- —
- Density
- 28.7 g/cm³
- Electronegativity
- —
- Period / Group
- 7 / 11
- Discovery year
- 1994