Symbol
Fl
  
Gd
  
Period Number
7
  
6
  
Block
p block
  
f block
  
Element Family
Post-Transition
  
Lanthanide
  
Space Group Name
Not Available
  
P63/mmc
  
Space Group Number
Not Available
  
Interesting Facts
Not Available
  
- Gadolinium is not found free in nature, hence it is not a native metal.
- Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
Sources
NA
  
Found in Minerals, Mining
  
History
  
  
Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
  
Jean Charles Galissard de Marignac
  
Discovery
In 1999
  
In 1880
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000002 %
  
25
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Abundance In Oceans
Not Available
  
Uses & Benefits
- Currently known uses of Flerovium metal are limited to research purpose only.
  
- Its alloys are also used in making Magnets, electronic components and Data storage devices.
- Compound of Gadolinium metal are used in magnetic resonance imaging (MRI).
  
Industrial Uses
NA
  
Aerospace Industry, Electrical Industry, Electronic Industry
  
Medical Uses
NA
  
NA
  
Other Uses
Alloys, Research Purposes
  
Alloys
  
Biological Properties
  
  
Toxicity
Unknown
  
Non Toxic
  
Present in Human Body
No
  
No
  
Melting Point
1,311.00 °C
  
35
Boiling Point
3,233.00 °C
  
25
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Unknown
  
Silvery White
  
Luster
Unknown Luster
  
Metallic
  
Hardness
  
  
Vickers Hardness
Not Available
  
Speed of Sound
Not Available
  
2,680.00 m/s
  
34
Optical Properties
  
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Fl
  
Gd
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Not Available
  
Allred Rochow Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Not Available
  
Ionization Energies
  
  
1st Energy Level
823.90 kJ/mol
  
13
593.40 kJ/mol
  
99+
2nd Energy Level
1,601.60 kJ/mol
  
34
1,170.00 kJ/mol
  
99+
3rd Energy Level
3,367.30 kJ/mol
  
18
1,990.00 kJ/mol
  
99+
4th Energy Level
4,399.70 kJ/mol
  
27
4,250.00 kJ/mol
  
30
5th Energy Level
5,847.00 kJ/mol
  
26
Not Available
  
Electrochemical Equivalent
Not Available
  
1.96 g/amp-hr
  
32
Electron Work Function
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
  
Corrosion, Flammable, Ionization, Radioactive Isotopes
  
Electron Configuration
[Rn] 5f14 6d10 7s2 7p2
  
[Xe] 4f7 5d1 6s2
  
Crystal Structure
Not Known
  
Hexagonal Close Packed (HCP)
  
Crystal Lattice
Unknown-Crystal-Structure-of-Flerovium.jpg#100
  
HCP-Crystal-Structure-of-Gadolinium.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Van der Waals Radius
Not Available
  
Atomic Volume
Not Available
  
19.90 cm3/mol
  
20
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
46.10 (-eV)
  
34
Lattice Constant
Not Available
  
Lattice Angles
Unknown
  
π/2, π/2, 2 π/3
  
Lattice C/A Ratio
Not Available
  
Density
  
  
Density At Room Temperature
14.00 g/cm3
  
23
7.90 g/cm3
  
99+
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
NA
  
Ductile, Malleable
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Unknown
  
Ferromagnetic
  
Electrical Properties
  
  
Electrical Property
Unknown
  
Conductor
  
Resistivity
Not Available
  
Electrical Conductivity
Not Available
  
0.01 10
6/cm Ω
  
99+
Electron Affinity
Not Available
  
50.00 kJ/mol
  
21
Specific Heat
Not Available
  
0.23 J/(kg K)
  
27
Molar Heat Capacity
Not Available
  
37.03 J/mol·K
  
2
Thermal Conductivity
Not Available
  
10.60 W/m·K
  
99+
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
9.40 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
359.40 kJ/mol
  
21
Enthalpy of Fusion
Not Available
  
10.05 kJ/mol
  
36
Enthalpy of Atomization
Not Available
  
352.00 kJ/mol
  
27
Standard Molar Entropy
Not Available
  
68.10 J/mol.K
  
16