Symbol
Gd
Atomic Number
64
Atomic Mass
157.25
Protons
64
Neutrons
93
Electrons
64
Type
Lanthanide
Isotopes
Gadolinium-156, Gadolinium-157, Gadolinium-158, Gadolinium-160
Discovery Year
1880
Discovered By
Johan Gadolin
Group
3
Period
6
Boiling Point
3546°C
Melting Point
1313°C
Electron Configuration
[Xe] 6s² 4f⁷ 5d¹
Density (g/cm³)
7.9
Crystal Structure
Hexagonal
Magnetism
Ferromagnetic
Abundance in Earth's Crust
0.0013%
Phase at Room Temperature
Solid