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117 · Ts

Tennessine

Produced in 2010 with an Oak Ridge berkelium target. Name adopted in 2016.

Identity

Atomic number
117
Symbol
Ts
Canonical name
Tennessine
Category
classification unsettled
Group
17
Period
7
Block
p

Bulk chemistry is not established. The table column is not a confirmed family.

Properties

These quantities come from the Periodic Table JSON compilation. They have not yet been checked, one by one, against CIAAW atomic weights or NIST measurements. A value marked estimated is not a measurement.

Atomic mass
[294] No standard atomic weight. The number shown is the conventional mass number used in tables, not a measured mass in u.
Electron configuration
*[Rn] 5f14 6d10 7s2 7p5
Electrons per shell
2, 8, 18, 32, 32, 18, 7
Standard state
not established
Density
7.17 g/cm³ (estimated) Predicted value: the element has not been observed in bulk.
Melting point
723 K (estimated) Predicted value: the element has not been observed in bulk.
Boiling point
883 K (estimated) Predicted value: the element has not been observed in bulk.

Notable isotopes

This summary is not an inventory of every isotope.

Conventional mass number: 294

History

Tennessine

Synthesis · confirmed · 2010

A collaboration led at Dubna, with a berkelium target prepared at Oak Ridge, produces element 117.

Target
249Bk
Projectile
48Ca
Isotope produced
293Ts, 294Ts

The name tennessine

Official recognition · officially recognized · 2016

IUPAC adopts the name tennessine in 2016. The usual French form is tennesse.

See the element timeline

Etymology

Theme
place
Language
anglais
Root
Tennessee
Meaning
Tennessee
Temporary systematic name
ununseptium (Uus)
Official adoption
2016

Scientists

Places and institutions

  • Dubna — historical setting : Soviet Union — present country : Russia

See also

Sources