Tennessine vs Oganesson

Side-by-side comparison of Tennessine (Ts, element 117) and Oganesson (Og, element 118) by atomic structure and physical properties.

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PropertyTs Tennessine Og Oganesson
Atomic number117118
SymbolTsOg
NameTennessineOganesson
Categoryhalogennoble-gas
Standard Atomic Weight294 u294 u
Period77
Group1718
Blockpp
Phase at STPSolidGas
Electron configuration[Rn]5f146d107s27p5 (Predicted)[Rn]5f146d107s27p6 (Predicted)
Oxidation states[-1, 1, 3, 5][-1, 0, 1, 2, 4, 6]
Electronegativity (Pauling)N/AN/A
Electron affinity1.719 eV0.08 eV
Density7200 kg/m³7000 kg/m³
Melting point549.85 °CN/A
Boiling point609.85 °C-243.15 °C
Discovery year20102006

Key Differences

PropertyTs TennessineOg Oganesson
Density7200 kg/m³ ↑ higher7000 kg/m³ ↓ lower
Boiling point609.85 °C ↑ higher-243.15 °C ↓ lower
Electron affinity1.719 eV ↑ higher0.08 eV ↓ lower
Group17 18
Categoryhalogen noble-gas
Phase at STPSolid Gas
Electron configuration[Rn]5f146d107s27p5 (Predicted) [Rn]5f146d107s27p6 (Predicted)
Discovery year2010 2006