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Zirconium vs Uranium

Zirconium
Uranium
Uranium vs Zirconium


Periodic Table
Symbol
Zr   
U   
Group Number
4   
14
0   
18
Period Number
5   
7   
Block
d block   
f block   
Element Family
Transition Metal   
Actinide   
CAS Number
7440677   
23
7440611   
28
Space Group Name
P63/mmc   
Cmcm   
Space Group Number
194.00   
5
63.00   
10
Facts
Interesting Facts
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
  • 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, Ores of Minerals   
Earth's crust, Mining, Ores of Minerals   
History
  
  
Who Discovered
Martin Heinrich Klaproth   
Not Available   
Discovery
In 1789   
In 1789   
Abundance
  
  
Abundance In Universe
5 * 10-6 %   
13
2 * 10-8 %   
29
Abundance In Sun
~0.000004 %   
16
~0.0000001 %   
26
Abundance In Meteorites
0.00 %   
17
0.00 %   
99+
Abundance In Earth's Crust
0.01 %   
14
0.00 %   
36
Abundance In Oceans
0.00 %   
23
0.00 %   
11
Abundance In Humans
0.00 %   
15
Not Available   
Uses
Uses & Benefits
  • As this metal does not absorb neutrons; It is used in nuclear power stations.
  • Its oxide is used in ultra strong ceramics. It is also used in manufacturing Crucibles.
  
  • 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, Ammunition Industry   
Ammunition Industry, Chemical Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Biological Properties
  
  
Toxicity
NA   
Toxic   
Present in Human Body
Yes   
No   
In Blood
0.01 Blood/mg dm-3   
21
Not Available   
In Bone
0.10 p.p.m.   
23
Not Available   
Physical Properties
Melting Point
1,852.00 °C   
15
1,132.00 °C   
39
Boiling Point
4,377.00 °C   
11
3,818.00 °C   
16
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery Gray   
Luster
Lustrous   
Metallic   
Hardness
  
  
Mohs Hardness
5.00   
8
6.00   
6
Brinell Hardness
638.00 MPa   
19
2,350.00 MPa   
2
Vickers Hardness
820.00 MPa   
15
1,960.00 MPa   
2
Speed of Sound
3,800.00 m/s   
20
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
Zr   
U   
Isotopes
  
  
Known Isotopes
24   
15
25   
14
Electronegativity
  
  
Pauling Electronegativity
1.33   
30
1.38   
28
Sanderson Electronegativity
0.90   
25
Not Available   
Allred Rochow Electronegativity
1.22   
26
1.22   
26
Allen Electronegativity
1.32   
34
Not Available   
Electropositivity
  
  
Pauling Electropositivity
2.67   
24
2.62   
26
Ionization Energies
  
  
1st Energy Level
640.10 kJ/mol   
99+
597.60 kJ/mol   
99+
2nd Energy Level
1,270.00 kJ/mol   
99+
1,420.00 kJ/mol   
99+
3rd Energy Level
2,218.00 kJ/mol   
99+
1,900.00 kJ/mol   
99+
4th Energy Level
3,313.00 kJ/mol   
99+
3,145.00 kJ/mol   
99+
5th Energy Level
7,752.00 kJ/mol   
10
Not Available   
6th Energy Level
9,500.00 kJ/mol   
15
Not Available   
Electrochemical Equivalent
0.85 g/amp-hr   
99+
1.48 g/amp-hr   
99+
Electron Work Function
4.05 eV   
26
3.63 eV   
30
Other Chemical Properties
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
40   
99+
92   
26
Electron Configuration
[Kr] 4d2 5s2   
[Rn] 5f3 6d1 7s2   
Crystal Structure
Hexagonal Close Packed (HCP)   
Orthorhombic (ORTH)   
Crystal Lattice
HCP-Crystal-Structure-of-Zirconium.jpg#100   
ORTH-Crystal-Structure-of-Uranium.jpg#100   
Atom
  
  
Number of Protons
40   
99+
92   
26
Number of Neutrons
51   
99+
146   
13
Number of Electrons
40   
99+
92   
26
Radius of an Atom
  
  
Atomic Radius
160.00 pm   
27
156.00 pm   
29
Covalent Radius
175.00 pm   
23
196.00 pm   
14
Van der Waals Radius
200.00 pm   
28
186.00 pm   
33
Atomic Weight
91.22 amu   
99+
238.03 amu   
21
Atomic Volume
14.10 cm3/mol   
36
12.59 cm3/mol   
40
Adjacent Atomic Numbers
  
  
Previous Element
Yttrium
  
Protactinium
  
Next Element
Niobium
  
Neptunium
  
Valence Electron Potential
80.00 (-eV)   
18
170.00 (-eV)   
4
Lattice Constant
323.20 pm   
99+
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   
8
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
6.52 g/cm3   
99+
19.10 g/cm3   
17
Density When Liquid (at m.p.)
5.80 g/cm3   
99+
17.30 g/cm3   
7
Tensile Strength
330.00 MPa   
12
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
0.00 (Pa)   
21
0.01 (Pa)   
20
Elasticity properties
  
  
Shear Modulus
33.00 GPa   
20
111.00 GPa   
10
Bulk Modulus
91.10 GPa   
17
100.00 GPa   
16
Young's Modulus
88.00 GPa   
22
208.00 GPa   
10
Poisson Ratio
0.34   
10
0.23   
30
Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
6.51   
99+
18.80   
10
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Poor Conductor   
Resistivity
421.00 nΩ·m   
11
0.28 nΩ·m   
99+
Electrical Conductivity
0.02 106/cm Ω   
99+
0.04 106/cm Ω   
37
Electron Affinity
41.10 kJ/mol   
27
Not Available   
Thermal Properties
Specific Heat
0.27 J/(kg K)   
19
0.12 J/(kg K)   
40
Molar Heat Capacity
25.36 J/mol·K   
99+
27.67 J/mol·K   
15
Thermal Conductivity
22.60 W/m·K   
99+
27.50 W/m·K   
40
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
5.70 µm/(m·K)   
99+
13.90 µm/(m·K)   
27
Enthalpy
  
  
Enthalpy of Vaporization
581.60 kJ/mol   
9
477.00 kJ/mol   
13
Enthalpy of Fusion
20.90 kJ/mol   
11
15.48 kJ/mol   
19
Enthalpy of Atomization
598.00 kJ/mol   
10
489.50 kJ/mol   
14
Standard Molar Entropy
39.00 J/mol.K   
39
50.20 J/mol.K   
31
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