Periodic Table of Elements




Gadolinium was only discovered by a Swiss chemist called Jean Charles Galissard de Marignac in 1880.

Name: Gadolinium
Symbol: Gd
Atomic number: 64
Atomic weight: 157.25
State: solid
Group, period, block: n/a, 6, f
Color: silvery white
Classification: lanthanide
Electron configuration: 4f7 5d1 6s2

Physical properties

Density: 7.90 g/cm-3
Melting point: 1585 K,1312 C,2394 F
Boiling point: 3546 K,3273 C,5923 F

Atomic properties

Oxidation states: 1, 2, 3
Electronegativity: 1.20 (Pauling scale)
Ionization energies: 1st: 593.4 kJmol-1
Covalent radius: 1966 pm
Van der Waals radius: no data
  • Gd
  • Electron Configuration


There are seven naturally occurring isotopes of gadolinium exist, 152Gd, 154Gd, 155Gd, 156Gd, 157Gd, 158Gd, and 160Gd.