117Unknown properties · Group 17 · Period 7
Tennessine
Tennessine (Ts) is element 117, a unknown properties in the p-block — group 17, period 7. It is a solid at room temperature with 7 electron shells (2, 8, 18, 32, 32, 18, 7) and an atomic mass of 294 u.
- Atomic mass
- 294.0 u
- Phase · STP
- solid
- Melting
- 723 K · 450 °C
- Boiling
- 883 K · 610 °C
- Electronegativity
- —
- Density
- 7.17 g/cm³
Photograph — Chemical Elements A Virtual Museum under a Creative Commons Attribution 3.0 Unported License, source: https://images-of-elements.com/tenessine.php
Identity
- Atomic number
- 117
- Standard atomic weight
- 294.0 u
- Category
- Unknown properties
- Group
- 17 · Halogens
- Period
- 7
- Block
- p-block
- Oxidation states
- +5, +3, +1, -1
Physical properties
- Melting point
- 723 K · 450 °C
- Boiling point
- 883 K · 610 °C
- Density
- 7.17 g/cm³
- Molar heat capacity
- —
- Atomic radius
- —
- Electron affinity
- 165.9 kJ/mol
Atomic structure
117protons
177neutrons
117electrons
7valence e⁻
- Noble-gas notation
- *[Rn] 5f14 6d10 7s2 7p5
- Full configuration
- 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p5
- Electrons per shell
- 2, 8, 18, 32, 32, 18, 7
Periodic trends
Where Tennessine ranks across all 118 elements.
Discovery
- Discovered
- 2010
- Discovered by
- Joint Institute for Nuclear Research
- Named by
- —
- Appearance
- —