Quick answerTennessine (Ts) is a halogen with atomic number 117 and a mass number of 294 (the most stable isotope), in group 17, period 7. It was discovered by Yuri Oganessian and colleagues in 2010. It is used for superheavy element research and testing the island of stability. Its electron configuration is [Rn] 5f14 6d10 7s2 7p5 (predicted).
Tennessine is a synthetic element named for Tennessee, home of the laboratory that supplied its rare berkelium target.
Key facts
| Symbol | Ts |
|---|---|
| Atomic number | 117 |
| Atomic mass | [294] — mass number of the most stable isotope |
| Category | halogen |
| Group | 17 |
| Period | 7 |
| Block | p-block |
| Electron configuration | [Rn] 5f14 6d10 7s2 7p5 predicted |
| Discovered | Yuri Oganessian and colleagues, 2010 |
| Uses | superheavy element research, testing the island of stability |
Quick quiz
Three questions from the facts on this page. No sign-up, no score is saved.
Keep exploring
- Periodic table — all 118 elements
- Fluorine (F) — another halogen, atomic number 9
- Chlorine (Cl) — another halogen, atomic number 17
- Bromine (Br) — another halogen, atomic number 35
- Iodine (I) — another halogen, atomic number 53
- Astatine (At) — another halogen, atomic number 85
Sources & last updated
- CIAAW — Standard Atomic Weights
- PubChem Periodic Table
- Wikipedia — Timeline of chemical element discoveries
- Wikipedia — Tennessine
Last updated: . Figures are shown with their year; where sources disagree, the value is left out rather than estimated.