Date of Discovery: 1880
Discoverer: Jean de Marignac
Name Origin: Gadolinite (mineral)
Uses: Magnetic
Obtained From: Gadolinite

 
Atomic Number: 64
Atomic Mass: 157.25 amu
Melting Point: 1311.0 °C (1584.15 °K, 2391.8 °F)
Boiling Point: 3233.0 °C (3506.15 °K, 5851.4 °F)
Crystal Structure: Hexagonal
Density @ 293 K: 7.895 g/cm3
Color: Silverish

 
Isotope
Gd-148
Gd-150
Gd-151
Gd-152
Gd-153
Gd-154
Gd-155
Gd-156
Gd-157
Gd-158
Gd-159
Gd-160
Gd-161
Half Life
75.0 years
1.8E6 years
124.0 days
1.1E11 years
241.6 days
Stable
Stable
Stable
Stable
Stable
18.6 hours
Stable
8.4 min