Name: Gadolinium
Symbol: Gd
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)
Number of Protons/Electrons: 64
Number of Neutrons: 93
Crystal Structure: Hexagonal
Density @ 293 K: 7.895 g/cm3
Color: Silverish
Atomic Structure
![[Bohr Model of Gadolinium]](b0064.gif) |
Number of Energy Levels: 6 First Energy Level: 2 Second Energy Level: 8 Third Energy Level: 18 Fourth Energy Level: 25 Fifth Energy Level: 9 Sixth Energy Level: 2 |
Isotopes
| Isotope | Half Life |
| Gd-148 | 75.0 years |
| Gd-150 | 1800000.0 years |
| Gd-151 | 124.0 days |
| Gd-152 | 1.1E11 years |
| Gd-153 | 241.6 days |
| Gd-154 | Stable |
| Gd-155 | Stable |
| Gd-156 | Stable |
| Gd-157 | Stable |
| Gd-158 | Stable |
| Gd-159 | 18.6 hours |
| Gd-160 | Stable |
| Gd-162 | 8.4 minutes |
Facts
Date of Discovery: 1880Discoverer: Jean de Marignac
Name Origin: gadolinite (mineral)
Uses: magnetic
Obtained From: gadolinite
Information provided by: http://www.chemicalelements.com