Ytterbium

Lanthanide · 173.05 u · group 3, period 6

Ytterbium · Yb

Atomic number70

SymbolYb

CategoryLanthanide

Standard stateSolid

Group · Period · Block3 · 6 · f

Electron configuration[Xe]6s2 4f14

Atomic mass173.05 u

Atomic radius242 pm

Protons / Neutrons / Electrons70 / 103 / 70

Shells (e⁻ per shell)2, 8, 18, 32, 8, 2

Electronegativity (Pauling)—

Ionization energy6.254 eV

Electron affinity—

Oxidation states+3, +2

Melting point1.09e+3 K · 818.9 °C

Boiling point1.47e+3 K · 1.20e+3 °C

Density6.9 g/cm³

Year discovered1878

CPK color

#00BF38

State at room temp (25 °C)

solid

Position