Element 117
Tennessine
Halogens
Tennessine (Ts) is in the p-block of the periodic table — group 17, period 7.
Tennessine is a superheavy artificial chemical element with an atomic number of 117 and a symbol of Ts.
Key data
- Atomic number
- 117
- Atomic mass
- 294.000 u
- Group / Period
- 17 / 7
- Block
- p-block
- Phase at STP
- Solid
- Density
- 7.17 g/cm³
- Melting point
- 449.9 °C
- Boiling point
- 609.9 °C
- Electron configuration
- *[Rn] 5f14 6d10 7s2 7p5
Periodic table block
Tennessine is in the p-block (group 17, period 7). Elements land in the p-block when their highest-energy electrons fill a p subshell — this region holds most nonmetals, the metalloids, and the metals on the right of the table.
New to this? Periodic table blocks explained: s, p, d, and f
Common uses
- •Research only
- •Named after Tennessee
- •Synthesized 2009
Discovery
Year: 2009
Discovered by: Joint Institute for Nuclear Research
Frequently asked questions
What is the atomic number of Tennessine?
Tennessine has atomic number 117. Its symbol is Ts and its atomic mass is 294 u.
What category of element is Tennessine?
Tennessine is classified as halogens. It sits in group 17, period 7 of the periodic table.
What block of the periodic table is Tennessine in?
Tennessine is in the p-block (group 17, period 7). Its highest-energy electrons occupy the p subshell — you can see this in its electron configuration, *[Rn] 5f14 6d10 7s2 7p5.
What is Tennessine used for?
Common uses of Tennessine include: Research only, Named after Tennessee, Synthesized 2009.
When was Tennessine discovered?
Tennessine was discovered in 2009 by Joint Institute for Nuclear Research.
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