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, which is 7 in the outermost shell.
Related: electron configuration, the Bohr model, valence electrons.
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
Tennessine: frequently asked questions
- What is Tennessine?
- Tennessine (Ts) is the chemical element with atomic number 117. It is not yet firmly classified; it is listed as "unknown, probably metalloid".
- What is the atomic number of Tennessine?
- Tennessine's atomic number is 117, which means every Tennessine atom has 117 protons in its nucleus.
- What is the electron configuration of Tennessine?
- The electron configuration of Tennessine is 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). Its electrons are arranged in shells of 2, 8, 18, 32, 32, 18, 7, with 7 in the outermost shell.
- Is Tennessine a metal or a nonmetal?
- Tennessine is not yet firmly classified; it is listed as "unknown, probably metalloid".
- What group and period is Tennessine in?
- Tennessine is in group 17 and period 7 of the periodic table.
- Is Tennessine a solid, liquid, or gas?
- At room temperature, Tennessine is a solid.
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.