Gadolinium

Lanthanide · 157.2 u · group 3, period 6

Gadolinium · Gd

Atomic number64

SymbolGd

CategoryLanthanide

Standard stateSolid

Group · Period · Block3 · 6 · f

Electron configuration[Xe]6s2 4f7 5d1

Atomic mass157.2 u

Atomic radius237 pm

Protons / Neutrons / Electrons64 / 93 / 64

Shells (e⁻ per shell)2, 8, 18, 25, 9, 2

Electronegativity (Pauling)1.2

Ionization energy6.15 eV

Electron affinity—

Oxidation states+3

Melting point1.59e+3 K · 1.31e+3 °C

Boiling point3.55e+3 K · 3.27e+3 °C

Density7.9 g/cm³

Year discovered1880

CPK color

#45FFC7

State at room temp (25 °C)

solid

Position