117 Ts 294
Tennessine
unknown, probably metalloid
Properties
- Atomic number
- 117
- Atomic mass
- 294 u
- Category
- unknown, probably metalloid
- Group
- 17
- Period
- 7
- Block
- p-block
- State (room temp)
- Solid
- Outer-shell electrons
- 7
- Electronegativity
- —
- Density
- 7.17 g/cm³
- Melting point
- 449.85 °C
- Boiling point
- 609.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 7s² 5f¹⁴ 6d¹⁰ 7p⁵
Noble-gas shorthand: [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵
Electrons per shell: 2, 8, 18, 32, 32, 18, 7 — that's 7 in the outermost shell.
About Tennessine
Tennessine is a superheavy artificial chemical element with an atomic number of 117 and a symbol of Ts. Also known as eka-astatine or element 117, it is the second-heaviest known element and penultimate element of the 7th period of the periodic table. As of 2016, fifteen tennessine atoms have been observed: six when it was first synthesized in 2010, seven in 2012, and two in 2014.
- Discovered by Joint Institute for Nuclear Research
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.