Element 117
Tennessine (Ts)
Tennessine (Ts) is element 117 of the periodic table, a element with unclassified properties in period 7, group 17 (p-block) with an atomic mass of 294 and is a solid at standard conditions.
At a glance
- Atomic number
- 117
- Symbol
- Ts
- Atomic mass
- 294 u
- Category
- Unclassified properties
- Period
- 7
- Group
- 17
- Block
- p-block
- Phase at STP
- solid
Electron structure
- Electron configuration
- 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 6s2 6p6 5f14 6d10 7s2 7p5
- Shorthand configuration
- [Rn] 5f14 6d10 7s2 7p5
- Electrons per shell
- 2, 8, 18, 32, 32, 18, 7
- Oxidation states
- -1, +1, +3, +5
Physical properties
- Melting point
- 723 K
- Boiling point
- 883 K
- Density
- 7.2 g/cm3
- Phase
- solid
Atomic properties
- Covalent radius
- 165 pm
- First ionization energy
- 743 kJ/mol
- Electron affinity
- 166 kJ/mol
Notable isotopes
| Isotope | Mass | Abundance | Stability |
|---|---|---|---|
| Ts-294 | 294.21046 | — | Half-life 51 ms |
Common uses
- Scientific research only
Discovery
- Year
- 2010
- Discovered by
- Joint Institute for Nuclear Research, Lawrence Livermore National Laboratory, Oak Ridge National Laboratory
- Country
- Russia/USA