118 Og Oganesson 294,0 u

Oganesson

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Periode
7
Gruppe
18
Block
p-Block
Phase (STP)
Solid

Oganesson is named after Yuri Oganessian, a pioneer in superheavy element research. It is the heaviest known element and may not behave as a noble gas.

About Oganesson

At atomic number 118, oganesson is the heaviest element yet made and the current terminus of the periodic table. It is named for Yuri Oganessian, whose laboratory pioneered the synthesis of superheavy nuclei. The relative atomic mass is 294.0 and the configuration [Rn] 5f14 6d10 7s2 7p6 completes the 7p subshell, placing the element in group 18 with the noble gases. That placement may be misleading. Calculations indicate oganesson would not share the inertness of the lighter noble gases, and relativistic effects on its outer electrons are expected to be strong enough to leave it appreciably reactive; its properties remain formally unknown.

Physikalische Eigenschaften

Atommasse 294.0 u
Phase bei STP Solid

Elektronenkonfiguration

Konfiguration [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶

Electron Shell Configuration

Oganesson electron shell configuration Og 2e⁻ 8e⁻ 18e⁻ 32e⁻ 32e⁻ 18e⁻ 8e⁻
Electron shell structure of Oganesson — 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) 8

Position in Periodic Table

Oganesson position in the periodic table Og

Block & Periode

Block

s p d f

Periode

1 2 3 4 5 6 7

Periodensystem

Lanthanide Actinide

Mehr Unbekannte Eigenschaften

109 Mt Meitnerium 110 Ds Darmstadtium 111 Rg Roentgenium 112 Cn Copernicium 113 Nh Nihonium 114 Fl Flerovium 115 Mc Moscovium 116 Lv Livermorium 117 Ts Tennessine

Frequently Asked Questions

What is Oganesson?
Oganesson (Og) is a chemical element with atomic number 118. It is a solid at standard temperature and pressure, classified as a unbekannte eigenschaften.
What are the key properties of Oganesson?
Oganesson has an atomic mass of 294.0 u.
What is the electron configuration of Oganesson?
The electron configuration of Oganesson is [Rn] 5f14 6d10 7s2 7p6. It is in the p-block of the periodic table.