117
Ts
Tennessine
(294)
28183232187
#117

Tennessine

unknown· Solid·294 u

Tennessine is a superheavy artificial chemical element with an atomic number of 117 and a symbol of Ts. Also known as eka-astatine or element 117, it is the second-heaviest known element and penultimate element of the 7th period of the periodic table. As of 2016, fifteen tennessine atoms have been observed: six when it was first synthesized in 2010, seven in 2012, and two in 2014.

Identity

Symbol
Ts
Atomic Number
117
Atomic Mass
294 u
Category
unknown
Block
p-block
Period
7
Group
17
Year Discovered
2010 CE
Discovered By
Joint Institute for Nuclear Research
Named By
Tennessee

Electrons

Configuration
*[Rn] 5f14 6d10 7s2 7p5
Full Configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p5
Shells
2, 8, 18, 32, 32, 18, 7
Electronegativity
n/a
Electron Affinity
165.9
Oxidation States
+5, +3, +1, -1

Physical Properties

State at
Solid
Melting Point
723
Boiling Point
883
Density
7.17
Crystal Structure
n/a
Magnetic Ordering
n/a

Mechanical

Thermal & Electrical

Abundance

Universe
0
Sun
0
Meteorite
0
Earth's Crust
0
Ocean
0
Human Body
0