117Ts[294]
Tennessine
Unknown propertiesSuper-heavy elements made in labs a few atoms at a time. Their chemistry is still being studied.
[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵
- Atomic number
- 117
- Atomic mass
- [294]
- Protons
- 117
- Neutrons
- 177
- Electrons
- 117
- Shells
- 2, 8, 18, 32, 32, 18, 7
- State at 25 °C
- Unknown
- Position
- Group 17, period 7
Proton (+)Neutron (0)Electron (−)
Discovered byDubna, Oak Ridge and US university teams, 2010Yuri Oganessian: 5 elements
Named after Tennessee, home of Oak Ridge National Laboratory.
Did you know?
- It was made using berkelium from a US reactor.
- It sits in the halogen column.
Where it's found
- Made only in laboratories, a few atoms at a time
What it's used for
- Scientific research only
Try it
There's no safe home experiment for Tennessine. Explore it with the animated atom above instead.