Sodium vs Ytterbium

PropertyNa SodiumYb Ytterbium
Atomic number1170
SymbolNaYb
NameSodiumYtterbium
Categoryalkali-metallanthanide
Standard Atomic Weight22.989769 u173.054 u
Period36
Group1N/A
Blockss
Phase at STPsolidsolid
Electron configuration[Ne]3s1[Xe]6s24f14
Oxidation states[-1, 0, 1][0, 1, 2, 3]
Electronegativity (Pauling)0.93N/A
Electron affinity0.5479 eV-0.02 eV
Density970 kg/m³6900 kg/m³
Melting point97.8 °C818.85 °C
Boiling point882.85 °C1195.85 °C
Discovery year18071878