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Uranium vs Osmium

Uranium
Osmium
Osmium vs Uranium


Periodic Table
Symbol
U  
Os  
Group Number
0  
18
8  
10
Period Number
7  
6  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440611  
28
7440042  
99+
Space Group Name
Cmcm  
P63/mmc  
Space Group Number
63.00  
10
194.00  
5
Facts
Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Osmium metal does not oxidize in air unless it is heated.
  • But if it heated den it forms Osmium Tetroxide, which is highly toxic.
  
Sources
Earth's crust, Mining, Ores of Minerals  
Found As a By-product, Found in Minerals, Mining  
History
  
  
Who Discovered
Not Available  
Smithson Tennant  
Discovery
In 1789  
In 1803  
Abundance
  
  
Abundance In Universe
2 * 10-8 %  
29
3 * 10-7 %  
21
Abundance In Sun
~0.0000001 %  
26
~0.0000002 %  
25
Abundance In Meteorites
0.00 %  
99+
0.00 %  
28
Abundance In Earth's Crust
0.00 %  
36
0.00 %  
99+
Abundance In Oceans
0.00 %  
11
Not Available  
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.
  
  • Its has very limited uses and its alloys are very hard and are used in the manufacturing of pen tips, pivots, needles and electrical contacts.
  • It is also used as industrial catalyst to speed up the chemical reaction.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Medical Uses
NA  
NA  
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Alloys  
Biological Properties
  
  
Toxicity
Toxic  
Highly Toxic  
Present in Human Body
No  
No  
Physical Properties
Melting Point
1,132.00 °C  
39
3,045.00 °C  
3
Boiling Point
3,818.00 °C  
16
5,027.00 °C  
6
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Silvery Bluish-Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
6.00  
6
7.00  
3
Brinell Hardness
2,350.00 MPa  
2
3,490.00 MPa  
1
Vickers Hardness
1,960.00 MPa  
2
Not Available  
Speed of Sound
3,155.00 m/s  
25
4,940.00 m/s  
11
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
U  
Os  
Isotopes
  
  
Known Isotopes
25  
14
35  
4
Electronegativity
  
  
Pauling Electronegativity
1.38  
28
2.20  
4
Allred Rochow Electronegativity
1.22  
26
1.52  
12
Allen Electronegativity
Not Available  
1.65  
19
Electropositivity
  
  
Pauling Electropositivity
2.62  
26
1.80  
99+
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol  
99+
840.00 kJ/mol  
12
2nd Energy Level
1,420.00 kJ/mol  
99+
1,309.80 kJ/mol  
99+
3rd Energy Level
1,900.00 kJ/mol  
99+
1,600.00 kJ/mol  
99+
4th Energy Level
3,145.00 kJ/mol  
99+
Not Available  
Electrochemical Equivalent
1.48 g/amp-hr  
99+
1.77 g/amp-hr  
38
Electron Work Function
3.63 eV  
30
4.83 eV  
8
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Ionization, Solubility  
Atomic Properties
Atomic Number
92  
26
76  
40
Electron Configuration
[Rn] 5f3 6d1 7s2  
[Xe] 4f14 5d6 6s2  
Crystal Structure
Orthorhombic (ORTH)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
92  
26
76  
39
Number of Neutrons
146  
13
114  
25
Number of Electrons
92  
26
76  
39
Radius of an Atom
  
  
Atomic Radius
156.00 pm  
29
133.80 pm  
99+
Covalent Radius
196.00 pm  
14
Not Available  
Van der Waals Radius
186.00 pm  
33
216.00 pm  
24
Atomic Weight
238.03 amu  
21
190.23 amu  
35
Atomic Volume
12.59 cm3/mol  
40
8.49 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Rhenium
  
Next Element
Neptunium
  
Iridium
  
Valence Electron Potential
170.00 (-eV)  
4
91.40 (-eV)  
12
Lattice Constant
295.08 pm  
99+
273.44 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, 2 π/3  
Lattice C/A Ratio
Not Available  
1.58  
14
Mechanical Properties
Density
  
  
Density At Room Temperature
19.10 g/cm3  
17
22.59 g/cm3  
9
Density When Liquid (at m.p.)
17.30 g/cm3  
7
20.00 g/cm3  
1
Tensile Strength
Not Available  
1,000.00 MPa  
4
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
0.01 (Pa)  
20
0.00 (Pa)  
28
Elasticity properties
  
  
Shear Modulus
111.00 GPa  
10
222.00 GPa  
1
Bulk Modulus
100.00 GPa  
16
462.00 GPa  
1
Young's Modulus
208.00 GPa  
10
Not Available  
Poisson Ratio
0.23  
30
0.25  
24
Other Mechanical Properties
Ductile, Malleable  
Ductile  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
18.80  
10
22.57  
2
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Poor Conductor  
Conductor  
Resistivity
0.28 nΩ·m  
99+
81.20 nΩ·m  
35
Electrical Conductivity
0.04 106/cm Ω  
37
0.11 106/cm Ω  
18
Electron Affinity
Not Available  
106.10 kJ/mol  
9
Thermal Properties
Specific Heat
0.12 J/(kg K)  
40
0.13 J/(kg K)  
39
Molar Heat Capacity
27.67 J/mol·K  
15
24.70 J/mol·K  
99+
Thermal Conductivity
27.50 W/m·K  
40
87.60 W/m·K  
19
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
13.90 µm/(m·K)  
27
5.10 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol  
13
627.60 kJ/mol  
7
Enthalpy of Fusion
15.48 kJ/mol  
19
29.30 kJ/mol  
4
Enthalpy of Atomization
489.50 kJ/mol  
14
669.00 kJ/mol  
6
Standard Molar Entropy
50.20 J/mol.K  
31
32.60 J/mol.K  
99+
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