Gadolinium (Gd) — Lanthanide. Atomic number 64.
Silvery-white metal
- Atomic number: 64
- Symbol: Gd
- Atomic mass: 157.25 u
- Category: Lanthanide
- State: Solid
- Melting point: 1311.85 °C / 1585 K
- Boiling point: 3272.85 °C / 3546 K
- Density: 7.9 g/cm³ (20°C)
- Electron configuration: [Xe] 4f7 5d1 6s2
- Oxidation states: +1, +2, +3
- Electronegativity: 1.2
- Discovered by: Jean Charles Galissard de Marignac (1880)
Common uses: MRI contrast agents, Neutron shielding, Magnets
Biological role: No known biological role.
Frequently Asked Questions about Gadolinium
What is the atomic number of gadolinium?
Gadolinium has an atomic number of 64, meaning each atom contains 64 protons in its nucleus.
What is the atomic mass of gadolinium?
The standard atomic weight of gadolinium is 157.25 u (unified atomic mass units).
What category does gadolinium belong to?
Gadolinium is classified as a lanthanide.
What is the state of gadolinium at room temperature?
Gadolinium is a solid at 20 °C (68 °F).
What is the melting point of gadolinium?
The melting point of gadolinium is 1311.85 °C / 1585 K.
What is the boiling point of gadolinium?
The boiling point of gadolinium is 3272.85 °C / 3546 K.
What is the density of gadolinium?
The density of gadolinium is 7.9 g/cm³ (20°C).
What is the electronegativity of gadolinium?
Gadolinium has a Pauling electronegativity of 1.2.
What is the electron configuration of gadolinium?
The electron configuration of gadolinium is [Xe] 4f7 5d1 6s2.
What are the common oxidation states of gadolinium?
Gadolinium commonly exhibits the following oxidation states: +1, +2, +3.
When was gadolinium discovered?
Gadolinium was discovered in 1880 by Jean Charles Galissard de Marignac.
Is gadolinium radioactive?
Gadolinium is a stable element with no naturally occurring radioactive isotopes.
What is the biological role of gadolinium?
No known biological role.
What are the common uses of gadolinium?
Gadolinium is used for: MRI contrast agents; Neutron shielding; Magnets.
