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Uranium vs Tantalum

Uranium
Tantalum
Tantalum vs Uranium


Periodic Table
Symbol
U   
Ta   
Group Number
0   
18
5   
13
Period Number
7   
6   
Block
f block   
d block   
Element Family
Actinide   
Transition Metal   
CAS Number
7440611   
28
7440257   
99+
Space Group Name
Cmcm   
Im_ 3m   
Space Group Number
63.00   
10
229.00   
1
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Tantalum metal is known as corrosion resistance.
  • Tantalum metal can easily fabricated and It is a good conductor of heat and electricity.
  
Sources
Earth's crust, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Not Available   
Anders Gustaf Ekeberg   
Discovery
In 1789   
In 1802   
Abundance
  
  
Abundance In Universe
2 * 10-8 %   
29
8 * 10-9 %   
31
Abundance In Sun
~0.0000001 %   
26
~-9999 %   
Abundance In Meteorites
0.00 %   
99+
0.00 %   
99+
Abundance In Earth's Crust
0.00 %   
36
0.00 %   
37
Abundance In Oceans
0.00 %   
11
0.00 %   
31
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.
  
  • Tantalum metal is mainly used in the manufacturing of electron components. Its Oxide layer acts as an insulator.
  • Tantalum metal is also used in surgical transplant like replacement of bone, skull plates and as a woven gauze.
  
Industrial Uses
Ammunition Industry, Chemical Industry   
Electrical Industry, Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Alloys   
Biological Properties
  
  
Toxicity
Toxic   
Low Toxic   
Present in Human Body
No   
Yes   
In Bone
Not Available   
0.03 p.p.m.   
28
Physical Properties
Melting Point
1,132.00 °C   
39
2,996.00 °C   
4
Boiling Point
3,818.00 °C   
16
5,425.00 °C   
4
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery Gray   
Gray Blue   
Luster
Metallic   
Metallic   
Hardness
  
  
Mohs Hardness
6.00   
6
6.50   
5
Brinell Hardness
2,350.00 MPa   
2
440.00 MPa   
28
Vickers Hardness
1,960.00 MPa   
2
870.00 MPa   
12
Speed of Sound
3,155.00 m/s   
25
3,400.00 m/s   
22
Optical Properties
  
  
Reflectivity
Not Available   
78.00 %   
6
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
U   
Ta   
Isotopes
  
  
Known Isotopes
25   
14
31   
8
Electronegativity
  
  
Pauling Electronegativity
1.38   
28
1.50   
27
Allred Rochow Electronegativity
1.22   
26
1.33   
22
Allen Electronegativity
Not Available   
1.34   
33
Electropositivity
  
  
Pauling Electropositivity
2.62   
26
2.50   
27
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol   
99+
761.00 kJ/mol   
18
2nd Energy Level
1,420.00 kJ/mol   
99+
1,500.00 kJ/mol   
40
3rd Energy Level
1,900.00 kJ/mol   
99+
Not Available   
4th Energy Level
3,145.00 kJ/mol   
99+
Not Available   
Electrochemical Equivalent
1.48 g/amp-hr   
99+
1.35 g/amp-hr   
99+
Electron Work Function
3.63 eV   
30
4.25 eV   
21
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Anti Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Atomic Properties
Atomic Number
92   
26
73   
99+
Electron Configuration
[Rn] 5f3 6d1 7s2   
[Xe] 4f14 5d3 6s2   
Crystal Structure
Orthorhombic (ORTH)   
Body Centered Cubic (BCC)   
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
92   
26
73   
99+
Number of Neutrons
146   
13
108   
28
Number of Electrons
92   
26
73   
99+
Radius of an Atom
  
  
Atomic Radius
156.00 pm   
29
146.00 pm   
35
Covalent Radius
196.00 pm   
14
170.00 pm   
25
Van der Waals Radius
186.00 pm   
33
200.00 pm   
28
Atomic Weight
238.03 amu   
21
180.95 amu   
38
Atomic Volume
12.59 cm3/mol   
40
10.90 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Hafnium
  
Next Element
Neptunium
  
Tungsten
  
Valence Electron Potential
170.00 (-eV)   
4
110.00 (-eV)   
7
Lattice Constant
295.08 pm   
99+
330.13 pm   
99+
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
19.10 g/cm3   
17
16.69 g/cm3   
18
Density When Liquid (at m.p.)
17.30 g/cm3   
7
15.00 g/cm3   
9
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
0.01 (Pa)   
20
0.00 (Pa)   
31
Elasticity properties
  
  
Shear Modulus
111.00 GPa   
10
69.00 GPa   
13
Bulk Modulus
100.00 GPa   
16
200.00 GPa   
8
Young's Modulus
208.00 GPa   
10
186.00 GPa   
13
Poisson Ratio
0.23   
30
0.34   
10
Other Mechanical Properties
Ductile, Malleable   
Ductile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
18.80   
10
16.65   
11
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Poor Conductor   
Conductor   
Resistivity
0.28 nΩ·m   
99+
131.00 nΩ·m   
25
Electrical Conductivity
0.04 106/cm Ω   
37
0.08 106/cm Ω   
27
Electron Affinity
Not Available   
31.00 kJ/mol   
29
Thermal Properties
Specific Heat
0.12 J/(kg K)   
40
0.14 J/(kg K)   
37
Molar Heat Capacity
27.67 J/mol·K   
15
25.36 J/mol·K   
99+
Thermal Conductivity
27.50 W/m·K   
40
57.50 W/m·K   
27
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
13.90 µm/(m·K)   
27
6.30 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol   
13
753.10 kJ/mol   
2
Enthalpy of Fusion
15.48 kJ/mol   
19
31.40 kJ/mol   
3
Enthalpy of Atomization
489.50 kJ/mol   
14
782.00 kJ/mol   
3
Standard Molar Entropy
50.20 J/mol.K   
31
41.50 J/mol.K   
37
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