Gd
Gadolinium (Atomic Number 64)
Category: lanthanide | Period 6, Group 3 | Block: f
Rare earth metal with exceptional magnetic neutron capture cross section.
Atomic & Physical Constants
- Standard Atomic Weight:
- 157.253 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 18, 25, 9, 2
- Electronegativity (Pauling):
- 1.2
- Melting Point:
- 1585 K
- Boiling Point:
- 3273 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
MRI intravenous contrast agent, nuclear emergency shutdown rods
Discovery History
Discovered by Jean Charles Galissard de Marignac (1880).
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