Ytterbium vs Lutetium

Pick up to 3 elements and see how they stack up.

PropertyYtterbiumLutetium
Atomic number 70 71
Atomic mass 173.05 174.97
Electronegativity 1.1 1.27
Melting point 1,097 K (823.8 °C) 1,925 K (1,651.8 °C)
Boiling point 1,469 K (1,195.8 °C) 3,675 K (3,401.8 °C)
Density 6.9 g/cm³ 9.841 g/cm³
Atomic radius 242 pm 221 pm
Ionization energy 6.254 eV 5.426 eV
Discovered 1878 1907
Category Lanthanide Lanthanide
State at room temp. Solid Solid
Block f f
Group — —
Period 6 6
Valence electrons 2 2
Common charges +2, +3 +3
Electron configuration [Xe] 4f14 6s2 [Xe] 4f14 5d1 6s2