Atomic number 117
Tennessine
Halogen
No photo: here’s why
Tennessine is a synthetic element made only in vanishingly small, intensely radioactive amounts - its atoms decay so quickly that no piece big enough to see or photograph has ever existed.
Quick facts
- Atomic mass
- 294.00
- Group
- 17
- Period
- 7
- State (STP)
- unknown
- Electronegativity
- –
- Common ox. states
- -1, +1, +3, +5
Properties
Electron configuration
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵
- Ionization energy
- –
- Electron affinity
- –
- Melting point
- –
- Boiling point
- –
How dangerous is it?
5/5 · Extreme
Named for the state of Tennessee, whose labs supplied material to make it, this element appears only as a few fleeting atoms inside an accelerator.
- RadioactiveImmediate
Each atom is intensely radioactive as it falls apart, yet none lasts long enough to collect.
Created and studied only with remote instruments by a handful of research facilities.
How it bonds· family overview
Tennessine (Ts) is a synthetic super-heavy halogen. Trends predict it would form a -1 anion and diatomic molecules, but only a few atoms have ever existed.
