Periodic TableTennessine (Ts)
Tennessine is a halogen with atomic number 117, in period 7 and group 17 of the periodic table. Its atomic mass is 294 u and its electron configuration is [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵.
Key facts
| Atomic number | 117 |
|---|---|
| Atomic mass | 294 u |
| Category | Halogen |
| Period | 7 |
| Group | 17 |
| Block | p |
| Electron configuration | [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵ |
| Electrons per shell | 2, 8, 18, 32, 32, 18, 7 |
| Electronegativity (Pauling) | --- |
| Oxidation states | −1, +1, +3, +5common in bold |
| State at 25 °C | --- |
| Melting point | --- |
| Boiling point | --- |
| Density | 7.2 g/cm³ |
Atomic properties
| First ionization energy | --- |
|---|---|
| Electron affinity | --- |
| Atomic radius | --- |
| Covalent radius | --- |
| Van der Waals radius | --- |
| Common ions | --- |
| Protons, neutrons, electrons | 117, 177, 117 |
Physical and thermal properties
| Molar volume | 41 cm³/mol |
|---|---|
| Heat of fusion | --- |
| Heat of vaporization | --- |
| Specific heat | --- |
| Thermal conductivity | --- |
| Thermal expansion | --- |
| Mohs hardness | --- |
| Young’s modulus | --- |
| Crystal structure | Simple hexagonal |
| Magnetic type | --- |
Identification and history
| CAS number | 87658-56-8 |
|---|---|
| Latin name | Tennessine |
| Discovered by | JINR, LLNL Vanderbilt U, Oak Ridge · 2010 |
| Named by | --- |
Natural isotopes
Tennessine has no stable isotopes: every isotope is radioactive.
No visible amount of Tennessine has ever been made: its physical properties here are theoretical estimates, not measurements.
Data checked against PubChem (NIH), IUPAC, the NIST Atomic Spectra Database and the IAEA (NUBASE and AME), the same data you see in the app.
A dash (---) means there is no reliable published measurement. The app never makes one up.
See Tennessine in the app
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