Tennessine
Atomic symbol: Ts
Atomic number: 117
Atomic mass: 294
Appearance: Semimetallic solid at 25°C
Group: 17
Period: 7
Series: Other metals
Block: p
Electron configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s² 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁶ 5f¹⁴ 6d¹⁰ 7s² 7p⁵
A superheavy, transactinide, radioactive and synthetic metal.
Fun Fact! As of 2021, tennessine is the most recently discovered element, first synthesized in 2009.