Tennessine (Ts)
Element 117 · halogen · group 17, period 7
Tennessine is element 117, a halogen in group 17 and period 7. Its electron configuration is [Rn] 5f14 6d10 7s2 7p5. That leaves 7 valence electrons in the outer shell, with the shells filling 2, 8, 18, 32, 32, 18, 7. Its outer shell is already full, so it does not normally form ions at all.
- 117 protons
- 7 valence e−
- p-block
Tennessine Lewis dot structure
Tennessine has 7 valence electrons, so its Lewis symbol carries 7 dots: three pairs and one single dot. The dots go one to a side before any of them pair up, so the unpaired ones show exactly how many bonds the atom tends to form.
Draw it in the Lewis structure generator →
Properties
| Atomic number | 117 |
|---|---|
| Symbol | Ts |
| Standard atomic weight | 294 u |
| Group | 17 |
| Period | 7 |
| Block | p-block |
| Category | halogen |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p5 |
| Noble-gas notation | [Rn] 5f14 6d10 7s2 7p5 |
| Electrons per shell | 2, 8, 18, 32, 32, 18, 7 |
| Valence electrons | 7 |
| Common ionic charge | none |
| Electronegativity (Pauling) | no accepted value |
| Protons / electrons | 117 / 117 |
Electron configuration of tennessine
Orbitals fill from the lowest energy upward. Writing that out for tennessine gives 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p5, which is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p5 in plain text.
Everything up to Rn is the same as in that noble gas, so it is usually abbreviated to [Rn] 5f14 6d10 7s2 7p5. The part outside the bracket is what does the chemistry.
| Subshell | Electrons | Capacity |
|---|---|---|
| 1s | 2 | 2 |
| 2s | 2 | 2 |
| 2p | 6 | 6 |
| 3s | 2 | 2 |
| 3p | 6 | 6 |
| 3d | 10 | 10 |
| 4s | 2 | 2 |
| 4p | 6 | 6 |
| 4d | 10 | 10 |
| 4f | 14 | 14 |
| 5s | 2 | 2 |
| 5p | 6 | 6 |
| 5d | 10 | 10 |
| 5f | 14 | 14 |
| 6s | 2 | 2 |
| 6p | 6 | 6 |
| 6d | 10 | 10 |
| 7s | 2 | 2 |
| 7p | 5 | 6 |
Tennessine ion charge
Tennessine has no known ions. It is made a few atoms at a time and decays within seconds, so its chemistry has barely been measured. Its position in group 17 suggests how it might behave, but a charge extrapolated from the group would be a guess, not a measurement.
Common questions
What is the Lewis dot structure of tennessine?
The symbol Ts with 7 dots, one for each valence electron: three pairs and one single dot. Dots go one to a side before any pair up, the same way electrons fill separate orbitals before sharing one.
How many valence electrons does tennessine have?
Tennessine has 7 valence electrons. For a main-group element the count is the group number minus 10, and tennessine is in group 17.
What is the electron configuration of tennessine?
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d10 7s2 7p5, or [Rn] 5f14 6d10 7s2 7p5 written from the previous noble gas. Orbitals fill lowest energy first.
How many protons, electrons and neutrons does tennessine have?
A neutral tennessine atom has 117 protons and 117 electrons. Its standard atomic weight is 294, so the most common isotope has about 177 neutrons.
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