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Uranium Lanthanum Comparison

Uranium
Lanthanum
Lanthanum Uranium comparison


Periodic Table
Symbol
U  
La  
Group Number
0  
18
3  
15
Period Number
7  
6  
Block
f block  
f block  
Element Family
Actinide  
Lanthanide  
CAS Number
7440611  
28
7439910  
99+
Space Group Name
Cmcm  
P63/mmc  
Space Group Number
63.00  
13
194.00  
7
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Lanthanum metal is highly malleable, ductile and sectile.
  • If exposed to air Lanthanum metal oxidizes rapidly.
  
Sources
Earth's crust, Mining, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
-  
Carl Gustaf Mosander  
Discovery
In 1789  
In 1838  
Abundance
  
  
Abundance In Universe
0.00 %  
30
0.00 %  
23
Abundance In Sun
0.00 %  
26
0.00 %  
25
Abundance In Meteorites
0.00 %  
99+
0.00 %  
32
Abundance In Earth's Crust
0.00 %  
36
0.00 %  
19
Abundance In Oceans
0.00 %  
11
0.00 %  
29
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • 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.
  
  • It has no commercial uses, but its alloys are in high demand. Lanthanum and Nickel alloy is used for the hydrogen gas storage.
  • The best-known use for mischmetal alloy of Lanthanum is; as a ‘flints’ for cigarette lighters.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Alloys, Mirror Manufacturing  
Biological Properties
  
  
Toxicity
Toxic  
Low Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
32
In Bone
1.20 p.p.m.  
19
0.08 p.p.m.  
29
Physical
Melting Point
1,132.00 °C  
39
920.00 °C  
99+
Boiling Point
3,818.00 °C  
16
3,469.00 °C  
19
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Silvery White  
Luster
Metallic  
-  
Hardness
  
  
Mohs Hardness
6.00  
6
2.50  
15
Brinell Hardness
2,350.00 MPa  
2
350.00 MPa  
36
Vickers Hardness
1,960.00 MPa  
6
360.00 MPa  
99+
Speed of Sound
3,155.00 m/s  
36
2,475.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.38  
40
1.80  
22
Reflectivity
80.00 %  
7
70.00 %  
13
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
U  
La  
Isotopes
  
  
Known Isotopes
25  
14
31  
8
Electronegativity
  
  
Pauling Electronegativity
1.38  
29
1.10  
99+
Sanderson Electronegativity
1.38  
22
1.10  
38
Allred Rochow Electronegativity
1.22  
27
1.08  
32
Mulliken-Jaffe Electronegativity
1.38  
29
1.10  
99+
Allen Electronegativity
1.38  
36
1.10  
99+
Electropositivity
  
  
Pauling Electropositivity
2.62  
26
2.90  
10
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol  
99+
538.10 kJ/mol  
99+
2nd Energy Level
1,420.00 kJ/mol  
99+
1,067.00 kJ/mol  
99+
3rd Energy Level
1,900.00 kJ/mol  
99+
1,850.30 kJ/mol  
99+
4th Energy Level
3,145.00 kJ/mol  
99+
4,819.00 kJ/mol  
32
5th Energy Level
5,976.00 kJ/mol  
99+
5,940.00 kJ/mol  
99+
6th Energy Level
5,976.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
7th Energy level
5,970.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
8th Energy Level
5,976.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
9th Energy Level
5,976.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
10th Energy Level
5,976.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
11th Energy Level
5,976.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
12th Energy Level
5,970.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
13th Energy Level
5,970.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
14th Energy Level
5,970.00 kJ/mol  
34
5,380.00 kJ/mol  
99+
15th Energy Level
59,700.00 kJ/mol  
99+
53,800.00 kJ/mol  
99+
16th Energy Level
59,700.00 kJ/mol  
35
53,800.00 kJ/mol  
99+
17th Energy Level
597.60 kJ/mol  
99+
538.10 kJ/mol  
99+
18th Energy Level
5,976.00 kJ/mol  
99+
5,380.00 kJ/mol  
99+
19th Energy Level
597.60 kJ/mol  
99+
538.10 kJ/mol  
99+
20th Energy Level
597.00 kJ/mol  
99+
538.00 kJ/mol  
99+
21st Energy Level
597.60 kJ/mol  
99+
538.10 kJ/mol  
99+
22nd Energy Level
597.00 kJ/mol  
99+
538.00 kJ/mol  
99+
23rd Energy Level
597.60 kJ/mol  
99+
5,380.00 kJ/mol  
25
24th Energy Level
597.60 kJ/mol  
99+
538.00 kJ/mol  
99+
25th Energy Level
597.60 kJ/mol  
99+
538.00 kJ/mol  
99+
26th Energy Level
597.60 kJ/mol  
99+
538.00 kJ/mol  
99+
27th Energy Level
597.60 kJ/mol  
99+
538.10 kJ/mol  
99+
28th Energy Level
597.60 kJ/mol  
99+
538.00 kJ/mol  
99+
29th Energy Level
597.60 kJ/mol  
99+
538.10 kJ/mol  
99+
30th Energy Level
597.60 kJ/mol  
99+
538.00 kJ/mol  
99+
Electrochemical Equivalent
1.48 g/amp-hr  
99+
1.73 g/amp-hr  
99+
Electron Work Function
3.63 eV  
99+
3.50 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Solubility  
Atomic
Atomic Number
92  
26
57  
99+
Electron Configuration
[Rn] 5f3 6d1 7s2  
[Xe] 5d2 6s2  
Crystal Structure
Orthorhombic (ORTH)  
Double Hexagonal Close Packed (DHCP)  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
DHCP-Crystal-Structure-of-Lanthanum.jpg#100  
Atom
  
  
Number of Protons
92  
26
57  
99+
Number of Neutrons
146  
14
82  
99+
Number of Electrons
92  
26
57  
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm  
31
187.00 pm  
10
Covalent Radius
196.00 pm  
14
207.00 pm  
6
Van der Waals Radius
186.00 pm  
40
240.00 pm  
17
Atomic Weight
238.03 amu  
21
138.91 amu  
99+
Atomic Volume
12.59 cm3/mol  
99+
20.73 cm3/mol  
26
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Barium
  
Next Element
Neptunium
  
Cerium
  
Valence Electron Potential
170.00 (-eV)  
4
40.71 (-eV)  
99+
Lattice Constant
295.08 pm  
99+
377.20 pm  
31
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
1.02  
99+
1.62  
16
Mechanical
Density
  
  
Density At Room Temperature
19.10 g/cm3  
17
6.16 g/cm3  
99+
Density When Liquid (at m.p.)
17.30 g/cm3  
17
5.94 g/cm3  
99+
Tensile Strength
100.00 MPa  
28
45.00 MPa  
40
Viscosity
0.00  
21
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
22
Vapor Pressure at 2000 K
0.01 (Pa)  
20
0.98 (Pa)  
15
Elasticity properties
  
  
Shear Modulus
111.00 GPa  
10
14.30 GPa  
99+
Bulk Modulus
100.00 GPa  
16
27.90 GPa  
99+
Young's Modulus
208.00 GPa  
11
36.60 GPa  
99+
Poisson Ratio
0.23  
30
0.28  
17
Other Mechanical Properties
Ductile, Malleable  
Ductile  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
18.80  
19
6.17  
99+
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
15
Susceptibility
0.00  
24
0.00  
25
Electrical Properties
  
  
Electrical Property
Poor Conductor  
Conductor  
Resistivity
0.28 nΩ·m  
99+
615.00 nΩ·m  
7
Electrical Conductivity
0.04 106/cm Ω  
99+
0.01 106/cm Ω  
99+
Electron Affinity
50.60 kJ/mol  
25
48.00 kJ/mol  
28
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.19 J/(kg K)  
33
Molar Heat Capacity
27.67 J/mol·K  
18
27.11 J/mol·K  
27
Thermal Conductivity
27.50 W/m·K  
99+
13.40 W/m·K  
99+
Critical Temperature
1,405.00 K  
99+
1,193.00 K  
99+
Thermal Expansion
13.90 µm/(m·K)  
30
12.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol  
18
399.60 kJ/mol  
24
Enthalpy of Fusion
15.48 kJ/mol  
19
6.20 kJ/mol  
99+
Enthalpy of Atomization
489.50 kJ/mol  
18
431.00 kJ/mol  
21
Standard Molar Entropy
50.20 J/mol.K  
99+
56.90 J/mol.K  
31
Summary >>
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