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Uranium vs Nobelium

Uranium
Nobelium
Nobelium vs Uranium


Periodic Table
Symbol
U  
No  
Group Number
0  
18
3  
15
Period Number
7  
7  
Block
f block  
f block  
Element Family
Actinide  
Actinide  
CAS Number
7440611  
28
10028145  
16
Space Group Name
Cmcm  
-  
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.
  
  • The most stable isotope of Nobelium metal is No-259.
  • No-259 has a half-life of fifty-eight minutes.
  
Sources
Earth's crust, Mining, Ores of Minerals  
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining  
History
  
  
Who Discovered
-  
Joint Institute for Nuclear Research  
Discovery
In 1789  
In 1966  
Abundance
  
  
Abundance In Universe
0.00 %  
30
-  
Abundance In Sun
0.00 %  
26
-  
Abundance In Meteorites
0.00 %  
99+
-  
Abundance In Earth's Crust
0.00 %  
36
-  
Abundance In Oceans
0.00 %  
11
-  
Abundance In Humans
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.
  
  • Currently known uses of Nobelium metal are limited to research purpose only.
  
Industrial Uses
Ammunition Industry, Chemical Industry  
-  
Medical Uses
-  
-  
Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues  
Research Purposes  
Biological Properties
  
  
Toxicity
Toxic  
-  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
40
In Bone
1.20 p.p.m.  
19
0.00 p.p.m.  
99+
Physical
Melting Point
1,132.00 °C  
39
827.00 °C  
99+
Boiling Point
3,818.00 °C  
16
2,600.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
-  
Luster
Metallic  
Unknown Luster  
Hardness
  
  
Mohs Hardness
6.00  
6
-  
Brinell Hardness
2,350.00 MPa  
2
500.00 MPa  
28
Vickers Hardness
1,960.00 MPa  
6
500.00 MPa  
35
Speed of Sound
3,155.00 m/s  
36
1,100.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.38  
40
1.30  
99+
Reflectivity
80.00 %  
7
61.00 %  
22
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
U  
No  
Isotopes
  
  
Known Isotopes
25  
14
13  
26
Electronegativity
  
  
Pauling Electronegativity
1.38  
29
1.30  
33
Sanderson Electronegativity
1.38  
22
1.30  
25
Allred Rochow Electronegativity
1.22  
27
1.20  
28
Mulliken-Jaffe Electronegativity
1.38  
29
1.30  
33
Allen Electronegativity
1.38  
36
1.10  
99+
Electropositivity
  
  
Pauling Electropositivity
2.62  
26
2.70  
22
Ionization Energies
  
  
1st Energy Level
597.60 kJ/mol  
99+
642.00 kJ/mol  
99+
2nd Energy Level
1,420.00 kJ/mol  
99+
1,254.00 kJ/mol  
99+
3rd Energy Level
1,900.00 kJ/mol  
99+
2,643.00 kJ/mol  
99+
4th Energy Level
3,145.00 kJ/mol  
99+
3,956.00 kJ/mol  
99+
5th Energy Level
5,976.00 kJ/mol  
99+
6,400.00 kJ/mol  
35
6th Energy Level
5,976.00 kJ/mol  
99+
6,400.00 kJ/mol  
99+
7th Energy level
5,970.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
8th Energy Level
5,976.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
9th Energy Level
5,976.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
10th Energy Level
5,976.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
11th Energy Level
5,976.00 kJ/mol  
99+
6,420.00 kJ/mol  
99+
12th Energy Level
5,970.00 kJ/mol  
99+
64,000.00 kJ/mol  
8
13th Energy Level
5,970.00 kJ/mol  
99+
6,400.00 kJ/mol  
36
14th Energy Level
5,970.00 kJ/mol  
34
6,400.00 kJ/mol  
26
15th Energy Level
59,700.00 kJ/mol  
99+
64,000.00 kJ/mol  
36
16th Energy Level
59,700.00 kJ/mol  
35
64,000.00 kJ/mol  
27
17th Energy Level
597.60 kJ/mol  
99+
641.00 kJ/mol  
99+
18th Energy Level
5,976.00 kJ/mol  
99+
3,500.00 kJ/mol  
99+
19th Energy Level
597.60 kJ/mol  
99+
627.60 kJ/mol  
99+
20th Energy Level
597.00 kJ/mol  
99+
627.00 kJ/mol  
99+
21st Energy Level
597.60 kJ/mol  
99+
917.00 kJ/mol  
34
22nd Energy Level
597.00 kJ/mol  
99+
627.00 kJ/mol  
36
23rd Energy Level
597.60 kJ/mol  
99+
6,410.00 kJ/mol  
12
24th Energy Level
597.60 kJ/mol  
99+
627.00 kJ/mol  
39
25th Energy Level
597.60 kJ/mol  
99+
0.00 kJ/mol  
99+
26th Energy Level
597.60 kJ/mol  
99+
601.20 kJ/mol  
99+
27th Energy Level
597.60 kJ/mol  
99+
641.00 kJ/mol  
37
28th Energy Level
597.60 kJ/mol  
99+
641.60 kJ/mol  
99+
29th Energy Level
597.60 kJ/mol  
99+
641.00 kJ/mol  
99+
30th Energy Level
597.60 kJ/mol  
99+
627.00 kJ/mol  
99+
Electrochemical Equivalent
1.48 g/amp-hr  
99+
4.83 g/amp-hr  
4
Electron Work Function
3.63 eV  
99+
4.90 eV  
12
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
92  
26
102  
16
Electron Configuration
[Rn] 5f3 6d1 7s2  
[Rn] 5f14 7s2  
Crystal Structure
Orthorhombic (ORTH)  
Not Known  
Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100  
Unknown-Crystal-Structure-of-Nobelium.jpg#100  
Atom
  
  
Number of Protons
92  
26
102  
16
Number of Neutrons
146  
14
157  
8
Number of Electrons
92  
26
102  
16
Radius of an Atom
  
  
Atomic Radius
156.00 pm  
31
176.00 pm  
20
Covalent Radius
196.00 pm  
14
157.00 pm  
33
Van der Waals Radius
186.00 pm  
40
246.00 pm  
12
Atomic Weight
238.03 amu  
21
259.00 amu  
13
Atomic Volume
12.59 cm3/mol  
99+
19.80 cm3/mol  
33
Adjacent Atomic Numbers
  
  
Previous Element
Protactinium
  
Mendelevium
  
Next Element
Neptunium
  
Lawrencium
  
Valence Electron Potential
170.00 (-eV)  
4
26.00 (-eV)  
99+
Lattice Constant
295.08 pm  
99+
-  
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.02  
99+
1.76  
5
Mechanical
Density
  
  
Density At Room Temperature
19.10 g/cm3  
17
9.90 g/cm3  
99+
Density When Liquid (at m.p.)
17.30 g/cm3  
17
9.90 g/cm3  
99+
Tensile Strength
100.00 MPa  
28
80.00 MPa  
29
Viscosity
0.00  
21
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.01 (Pa)  
20
0.00 (Pa)  
28
Elasticity properties
  
  
Shear Modulus
111.00 GPa  
10
27.00 GPa  
34
Bulk Modulus
100.00 GPa  
16
8.70 GPa  
99+
Young's Modulus
208.00 GPa  
11
12.30 GPa  
99+
Poisson Ratio
0.23  
30
0.30  
14
Other Mechanical Properties
Ductile, Malleable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
18.80  
19
9.90  
99+
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
16
0.00 H/m  
3
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
Poor Conductor  
-  
Resistivity
0.28 nΩ·m  
99+
0.68 nΩ·m  
99+
Electrical Conductivity
0.04 106/cm Ω  
99+
0.00 106/cm Ω  
99+
Electron Affinity
50.60 kJ/mol  
25
50.00 kJ/mol  
26
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.10 J/(kg K)  
99+
Molar Heat Capacity
27.67 J/mol·K  
18
27.00 J/mol·K  
29
Thermal Conductivity
27.50 W/m·K  
99+
0.10 W/m·K  
99+
Critical Temperature
1,405.00 K  
99+
1,100.00 K  
99+
Thermal Expansion
13.90 µm/(m·K)  
30
11.00 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
477.00 kJ/mol  
18
-  
Enthalpy of Fusion
15.48 kJ/mol  
19
-  
Enthalpy of Atomization
489.50 kJ/mol  
18
390.40 kJ/mol  
30
Standard Molar Entropy
50.20 J/mol.K  
99+
63.00 J/mol.K  
24
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