Dysprosium vs Ytterbium

PropertyDy DysprosiumYb Ytterbium
Atomic number6670
SymbolDyYb
NameDysprosiumYtterbium
Categorylanthanidelanthanide
Standard Atomic Weight162.5 u173.054 u
Period66
GroupN/AN/A
Blockss
Phase at STPsolidsolid
Electron configuration[Xe]6s24f10[Xe]6s24f14
Oxidation states[0, 1, 2, 3, 4][0, 1, 2, 3]
Electronegativity (Pauling)1.22N/A
Electron affinity0.352 eV-0.02 eV
Density8550 kg/m³6900 kg/m³
Melting point1411.85 °C818.85 °C
Boiling point2566.85 °C1195.85 °C
Discovery year18781878