Hydrogen vs Ytterbium

PropertyH HydrogenYb Ytterbium
Atomic number170
SymbolHYb
NameHydrogenYtterbium
Categorynonmetallanthanide
Standard Atomic Weight1.007975 u173.054 u
Period16
Group1N/A
Blockss
Phase at STPgassolid
Electron configuration1s1[Xe]6s24f14
Oxidation states[-1, 1][0, 1, 2, 3]
Electronegativity (Pauling)2.2N/A
Electron affinity0.75419 eV-0.02 eV
Density0.08988 kg/m³6900 kg/m³
Melting point-259.34 °C818.85 °C
Boiling point-252.87 °C1195.85 °C
Discovery year17661878