Periodic System for Chemists

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Table
118
294.00

Og

Oganesson

Identification

CAS Number: 54144-19-3
Discovery Year: 2002
Discoverer: Joint Institute for Nuclear Research
Discovery Location: Russia

Properties

Atomic Mass: 294 →Density: 7 g/cm³ →

Electronic Structure

Electron Config: [Rn] 5f14 6d10 7s2 7p6
Block: p
Period: 7 →Group: 18 →Electron Affinity: 0.055999999999999994 eV →

Abundance & Geochemistry

Goldschmidt Class: synthetic

About

Element 118

Isotopes

Og-294 294 ☢ 1.40 ms

Related Elements

Category

Noble Gases

Same Group

2 He Helium10 Ne Neon18 Ar Argon36 Kr Krypton54 Xe Xenon86 Rn Radon

Same Period

115 Mc Moscovium116 Lv Livermorium117 Ts Tennessine

Periodic Trends

Electronegativity →Atomic Radius →Density →Melting Point →

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