Tennessine (Ts), element 117 – Learn Acer periodic table

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.

Symbol Ts. Atomic mass 294.0 u. Group 17, period 7. Electron configuration [Rn] 5f14 6d10 7s2 7p5. Electrons per shell 2, 8, 18, 32, 32, 18, 7. State at room temperature: Solid. Melting point 449.9 °C, boiling point 609.9 °C. Discovered by Joint Institute for Nuclear Research.

Element data from Wikipedia, CC BY-SA 3.0.

Tennessine (Ts), element 117 – Learn Acer periodic table

Tennessine

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