Tennessine (Ts)
Its name ends in -ine, like chlorine and iodine, because new elements in group 17 follow the naming pattern of the halogens.
Tennessine properties
- Atomic number
- 117
- Atomic mass
- 294 u
- Category
- Unknown properties
- Group
- 17
- Period
- 7
- Block
- p-block
- State at room temp.
- Unknown
- Density
- —
- Electron affinity
- —
- Radioactive
- Yes, no stable isotopes
- Discovered
- 2010
Tennessine electron configuration
- Electron configuration
- [Rn] 5f14 6d10 7s2 7p5
- Full electron configuration
- 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p5
- Electron shells
- 2 · 8 · 18 · 32 · 32 · 18 · 7
The electron configuration of Tennessine (Ts) is [Rn] 5f14 6d10 7s2 7p5. Its 117 electrons are arranged in shells as 2, 8, 18, 32, 32, 18, 7.
Protons, neutrons and electrons in Tennessine
A neutral Tennessine atom has 117 protons and 117 electrons. Most Tennessine atoms have about 177 neutrons: the atomic mass rounded to 294, minus the atomic number 117.
Neutrons are approximate: atoms of the same element can have different numbers of neutrons (isotopes). Atomic number and mass
How many valence electrons does Tennessine have?
7
Tennessine has 7 valence electrons in its outermost shell, shell 7. These are the electrons involved in chemical bonding.
Tennessine orbital diagram
Each box is an orbital that holds up to two electrons with opposite spins (↑↓). The inner shells are the same as the noble gas in brackets. How to write electron configurations
Molar mass of Tennessine
294 g/mol
One mole of Tennessine atoms (6.022 × 10²³ atoms) has a mass of 294 grams. Use this value to convert between grams and moles.
Tennessine facts
- Its name ends in -ine, like chlorine and iodine, because new elements in group 17 follow the naming pattern of the halogens.
- Tennessine was the last of the first 118 elements to be discovered, filling the final gap in the seventh row.
- Tennessine (Ts) has atomic number 117. It was discovered in 2010.
Position in the periodic table
Tennessine is element 117, in period 7 and group 17 of the periodic table, in the p-block.
Uses of Tennessine
Tennessine has no uses outside research because only a small number of atoms have ever been made, and they decay in fractions of a second. Scientists study it to explore the limits of the periodic table and the predicted island of stability. Although it sits below astatine in group 17, it is not expected to behave much like a typical halogen.
Who discovered Tennessine?
A Russian-American team led by Yuri Oganessian at Dubna first made tennessine in 2010 by bombarding a berkelium target, produced at Oak Ridge National Laboratory, with calcium ions. It is named after the US state of Tennessee, home of Oak Ridge, Vanderbilt University and the University of Tennessee.
Where does the name come from?
Tennessine is named after the US state of Tennessee, home of Oak Ridge National Laboratory, Vanderbilt University and the University of Tennessee, all of which contributed to its discovery. The -ine ending matches halogens such as chlorine.
Same group
Compare Tennessine
FAQ
What is the electron configuration of Tennessine?
The electron configuration of Tennessine (Ts) is [Rn] 5f14 6d10 7s2 7p5. Its 117 electrons are arranged in shells as 2, 8, 18, 32, 32, 18, 7.
How many protons, neutrons and electrons does Tennessine have?
A neutral Tennessine atom has 117 protons and 117 electrons. Most Tennessine atoms have about 177 neutrons: the atomic mass rounded to 294, minus the atomic number 117.
How many valence electrons does Tennessine have?
Tennessine has 7 valence electrons in its outermost shell, shell 7. These are the electrons involved in chemical bonding.
What is the molar mass of Tennessine?
The molar mass of Tennessine is 294 g/mol. This is the same number as its atomic mass, 294 u.
Is Tennessine a metal?
Tennessine is a synthetic superheavy element, so too few atoms have been made to measure whether it behaves as a metal.
Is Tennessine radioactive?
Yes. Tennessine has no stable isotopes, so all of its atoms are radioactive and eventually decay into other elements.
Where is Tennessine on the periodic table?
Tennessine is element 117, in period 7 and group 17 of the periodic table, in the p-block.