Tennessine (Ts)

Tennessine is a chemical element with symbol Ts and atomic number 117. It is named after the U.S. state of Tennessee. As a synthetic element, it can be created in a laboratory but is not found in nature.

Atomic Number

117

Atomic Mass

294 u

Phase

Predicted solid

Density

~7.2 (predicted) g/cm³

Electron Shells

2, 8, 18, 32, 32, 18, 7

Atomic Structure

Protons: 117 • Electrons: 117 • Neutrons: Varies by isotope

Electron Configuration: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹⁰ 7p⁵

Discovery

2010 • Yuri Oganessian, Joseph Hamilton, Ken Moody