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Gadolinium Uranium Comparison

Gadolinium
Uranium
Uranium Gadolinium comparison


Periodic Table
Symbol
Gd   
U   
Group Number
0   
18
0   
18
Period Number
6   
7   
Block
f block   
f block   
Element Family
Lanthanide   
Actinide   
CAS Number
7440542   
33
7440611   
28
Space Group Name
P63/mmc   
Cmcm   
Space Group Number
194.00   
5
63.00   
10
Facts
Interesting Facts
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
Sources
Found in Minerals, Mining   
Earth's crust, Mining, Ores of Minerals   
History
  
  
Who Discovered
Jean Charles Galissard de Marignac   
Not Available   
Discovery
In 1880   
In 1789   
Abundance
  
  
Abundance In Universe
2 * 10-7 %   
22
2 * 10-8 %   
29
Abundance In Sun
~0.0000002 %   
25
~0.0000001 %   
26
Abundance In Meteorites
0.00 %   
34
0.00 %   
99+
Abundance In Earth's Crust
0.00 %   
30
0.00 %   
36
Abundance In Oceans
0.00 %   
38
0.00 %   
11
Uses
Uses & Benefits
  • 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).
  
  • The main use of this metal include nuclear fuel which is used to generate electricity yin nuclear power stations.
  • Synthetic elements like transuranium are made from Uranium metal.
  
Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry   
Ammunition Industry, Chemical Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys   
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Biological Properties
  
  
Toxicity
Non Toxic   
Toxic   
Present in Human Body
No   
No   
Physical Properties
Melting Point
1,311.00 °C   
35
1,132.00 °C   
39
Boiling Point
3,233.00 °C   
25
3,818.00 °C   
16
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery Gray   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
Not Available   
6.00   
6
Brinell Hardness
Not Available   
2,350.00 MPa   
2
Vickers Hardness
510.00 MPa   
22
1,960.00 MPa   
2
Speed of Sound
2,680.00 m/s   
34
3,155.00 m/s   
25
Optical Properties
  
  
Allotropes
No   
No   
α Allotropes
Not Available   
Not Available   
β Allotropes
Not Available   
Not Available   
γ Allotropes
Not Available   
Not Available   
Chemical Properties
Chemical Formula
Gd   
U   
Isotopes
  
  
Known Isotopes
26   
13
25   
14
Electronegativity
  
  
Pauling Electronegativity
1.20   
39
1.38   
28
Allred Rochow Electronegativity
1.11   
29
1.22   
26
Electropositivity
  
  
Pauling Electropositivity
2.80   
15
2.62   
26
Ionization Energies
  
  
1st Energy Level
593.40 kJ/mol   
99+
597.60 kJ/mol   
99+
2nd Energy Level
1,170.00 kJ/mol   
99+
1,420.00 kJ/mol   
99+
3rd Energy Level
1,990.00 kJ/mol   
99+
1,900.00 kJ/mol   
99+
4th Energy Level
4,250.00 kJ/mol   
30
3,145.00 kJ/mol   
99+
Electrochemical Equivalent
1.96 g/amp-hr   
32
1.48 g/amp-hr   
99+
Electron Work Function
3.10 eV   
35
3.63 eV   
30
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
64   
99+
92   
26
Electron Configuration
[Xe] 4f7 5d1 6s2   
[Rn] 5f3 6d1 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Orthorhombic (ORTH)   
Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100   
ORTH-Crystal-Structure-of-Uranium.jpg#100   
Atom
  
  
Number of Protons
64   
99+
92   
26
Number of Neutrons
93   
37
146   
13
Number of Electrons
64   
99+
92   
26
Radius of an Atom
  
  
Atomic Radius
180.00 pm   
14
156.00 pm   
29
Covalent Radius
196.00 pm   
14
196.00 pm   
14
Van der Waals Radius
237.00 pm   
15
186.00 pm   
33
Atomic Weight
47.87 amu   
99+
238.03 amu   
21
Atomic Volume
19.90 cm3/mol   
20
12.59 cm3/mol   
40
Adjacent Atomic Numbers
  
  
Previous Element
Europium
  
Protactinium
  
Next Element
Terbium
  
Neptunium
  
Valence Electron Potential
46.10 (-eV)   
34
170.00 (-eV)   
4
Lattice Constant
363.60 pm   
32
295.08 pm   
99+
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.59   
9
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
7.90 g/cm3   
99+
19.10 g/cm3   
17
Density When Liquid (at m.p.)
7.40 g/cm3   
31
17.30 g/cm3   
7
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
30
Not Available   
Vapor Pressure at 2000 K
7.39 (Pa)   
9
0.01 (Pa)   
20
Elasticity properties
  
  
Shear Modulus
21.80 GPa   
33
111.00 GPa   
10
Bulk Modulus
37.90 GPa   
34
100.00 GPa   
16
Young's Modulus
54.80 GPa   
35
208.00 GPa   
10
Poisson Ratio
0.26   
23
0.23   
30
Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
7.90   
40
18.80   
10
Magnetic Ordering
Ferromagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Poor Conductor   
Resistivity
1.31 nΩ·m   
99+
0.28 nΩ·m   
99+
Electrical Conductivity
0.01 106/cm Ω   
99+
0.04 106/cm Ω   
37
Electron Affinity
50.00 kJ/mol   
21
Not Available   
Thermal Properties
Specific Heat
0.23 J/(kg K)   
27
0.12 J/(kg K)   
40
Molar Heat Capacity
37.03 J/mol·K   
2
27.67 J/mol·K   
15
Thermal Conductivity
10.60 W/m·K   
99+
27.50 W/m·K   
40
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
9.40 µm/(m·K)   
99+
13.90 µm/(m·K)   
27
Enthalpy
  
  
Enthalpy of Vaporization
359.40 kJ/mol   
21
477.00 kJ/mol   
13
Enthalpy of Fusion
10.05 kJ/mol   
36
15.48 kJ/mol   
19
Enthalpy of Atomization
352.00 kJ/mol   
27
489.50 kJ/mol   
14
Standard Molar Entropy
68.10 J/mol.K   
16
50.20 J/mol.K   
31
Summary >>
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