Atomic Properties
- Atomic Number
- 109
- Atomic Mass
- 278.0000 u
- Electron Configuration
- [Rn] 5f14 6d7 7s2
- Electronegativity
- —
- Block
- d-block
- Group
- 9
- Period
- 7
Physical Properties
- Phase (STP)
- solid
- Melting Point
- —
- Boiling Point
- —
- Density
- 37.4000 g/cm³
About Meitnerium
Named after Lise Meitner, who discovered nuclear fission.