Atomic Number
117
Element 117
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 Mass
294 u
Category
Unknown Classification
Period
7
Group
Group 17: halogens
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
Why Tennessine Matters
Tennessine helps connect atomic number 117, unknown classification behavior, period 7 trends, and electron shell structure. Its Predicted solid phase, atomic mass of 294 u, and electron configuration 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹⁰ 7p⁵ make it useful for comparing bonding patterns across the periodic table.
Discovery and Occurrence
Tennessine was discovered 2010 by Yuri Oganessian, Joseph Hamilton, Ken Moody. 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.
Safety and Handling Context
Tennessine has radioactive isotopes or is commonly discussed with radioactive materials. Use this page as an educational reference; real samples require qualified supervision and controlled handling.
Related Elements
Frequently Asked Questions
- What is the atomic number of Tennessine?
- Tennessine has atomic number 117, which means a neutral atom has 117 protons and 117 electrons.
- What is the chemical symbol for Tennessine?
- The chemical symbol for Tennessine is Ts.
- What category is Tennessine in?
- Tennessine is classified as a unknown classification and sits in period 7 of the periodic table.
Explore Tennessine in 3D
Use the interactive table above to rotate atomic models, compare periodic trends, and move from Tennessine to neighboring elements without losing your place.