Element 117 · Unknown properties
Tennessine (Ts) — Element 117
Tennessee
Tennessine (Ts) is a chemical element with unknown bulk chemical properties in Period 7, Group 17 of the periodic table with atomic number 117, standard atomic weight [294] u, and ground-state electron configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵. At standard temperature and pressure it is classified as a short-lived synthetic nuclide with 7 valence electrons.
Research only
What are the atomic properties and physical constants of Tennessine?
Reference constants compiled from IUPAC standard atomic weights, the NIST Atomic Spectra Database, and the CRC Handbook.
- Atomic number (Z)
- 117
- Standard atomic mass
- [294] u
- Chemical family
- Unknown properties
- Ground-state configuration
- [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵
- Electrons per shell
- 2, 8, 18, 32, 32, 18, 7
- Valence electrons
- 7
- Common ion charges / oxidation states
- —
- Phase at STP
- Synthetic
- Pauling electronegativity
- —
- First ionization energy
- —
- Atomic radius
- —
- Melting point
- —
- Boiling point
- —
- Discovery year
- 2010
- Table coordinate
- Period 7, Group 17
- Radioactivity
- Radioactive (no stable isotopes)
How are electrons arranged across Tennessine’s shells?
A neutral Tennessine atom contains 117 electrons distributed across 7 occupied principal energy shells ([Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵). The table below compares Tennessine’s shell occupancy against each shell’s theoretical 2n² capacity.
| Principal Shell (n) | Spectroscopic Letter | Electrons in Ts | Max Shell Capacity (2n²) |
|---|---|---|---|
| n = 1 | K | 2 e⁻ | 2 e⁻ |
| n = 2 | L | 8 e⁻ | 8 e⁻ |
| n = 3 | M | 18 e⁻ | 18 e⁻ |
| n = 4 | N | 32 e⁻ | 32 e⁻ |
| n = 5 | O | 32 e⁻ | 50 e⁻ |
| n = 6 | P | 18 e⁻ | 72 e⁻ |
| n = 7 | Q | 7 e⁻ | 98 e⁻ |
Frequently Asked Questions about Tennessine (Ts)
What is the atomic mass and atomic number of Tennessine (Ts)?
Tennessine (Ts) has atomic number Z = 117 (117 protons in its nucleus) and an IUPAC standard atomic weight of [294] u. It sits in Period 7, Group 17 and is classified as an unknown properties.
What is the ground-state electron configuration of Tennessine?
The neutral ground-state electron configuration of Tennessine (Z = 117) is [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵. Across its 7 occupied principal shells (n = 1 to n = 7), the electrons per shell are 2, 8, 18, 32, 32, 18, 7, with 7 valence electrons participating in bonding.
What are the common ion charges and electronegativity of Tennessine?
Tennessine has no common simple monatomic ion charges under standard classroom conditions. Its Pauling electronegativity is — and its first ionization energy is —.
When was Tennessine discovered and what is it used for?
Tennessine was discovered in 2010 (Tennessee). Research only
How does Tennessine compare to neighboring elements?
Other unknown properties elements: