117 Ts Tennessine 294.0 u

Tennessine

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Period
7
Group
17
Block
p-block
Phase (STP)
Solid

Tennessine is named after the state of Tennessee. It is the second heaviest known halogen, though its chemistry remains largely unknown.

About Tennessine

Group 17 acquired its heaviest known member with tennessine, named for the state of Tennessee in recognition of the laboratories there that supplied target material for its synthesis. The element has atomic number 117 and a relative atomic mass of 294.0, and its configuration [Rn] 5f14 6d10 7s2 7p5 gives it the seven outer electrons characteristic of a halogen. Whether it behaves like one is unresolved: its chemistry is largely unknown, no electronegativity has been assigned, and calculations suggest relativistic effects may make it markedly less halogen-like than its position implies. Every atom so far made has been produced by heavy-ion fusion and observed only through its decay.

Physical Properties

Atomic Mass 294.0 u
Phase at STP Solid

Electron Configuration

Configuration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵

Electron Shell Configuration

Tennessine electron shell configuration Ts 2e⁻ 8e⁻ 18e⁻ 32e⁻ 32e⁻ 18e⁻ 7e⁻
Electron shell structure of Tennessine — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 32
6 (P) 18
7 (Q) 7

Position in Periodic Table

Tennessine position in the periodic table Ts

Block & Period

Block

s p d f

Period

1 2 3 4 5 6 7

Periodic Table

Lanthanides Actinides

More Unknown Properties

109 Mt Meitnerium 110 Ds Darmstadtium 111 Rg Roentgenium 112 Cn Copernicium 113 Nh Nihonium 114 Fl Flerovium 115 Mc Moscovium 116 Lv Livermorium 118 Og Oganesson

Frequently Asked Questions

What is Tennessine?
Tennessine (Ts) is a chemical element with atomic number 117. It is a solid at standard temperature and pressure, classified as a unknown properties.
What are the key properties of Tennessine?
Tennessine has an atomic mass of 294.0 u.
What is the electron configuration of Tennessine?
The electron configuration of Tennessine is [Rn] 5f14 6d10 7s2 7p5. It is in the p-block of the periodic table.