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Tennessine (Ts)
Atomic number: 117 · Category: unknown, probably metalloid · Group 17 · Period 7 · Phase: Solid
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.
Block: p
Electronic structure
Electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p5
Configuration (semantic): *[Rn] 5f14 6d10 7s2 7p5
Shells: 2, 8, 18, 32, 32, 18, 7
Electron affinity: 165.9
Periodic position
Group: 17
Period: 7
xpos: 17
ypos: 7
Spectral/Bohr images
Image
3D Model