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Uranium vs Lead


Lead vs Uranium


Periodic Table

Symbol
U   
Pb   

Group Number
0   
18
14   
4

Period Number
7   
6   

Block
f block   
p block   

Element Family
Actinide   
Post-​Transition   

CAS Number
7440611   
28
7439921   
99+

Space Group Name
Cmcm   
Fm_ 3m   

Space Group Number
63.00   
10
225.00   
2

Facts

Interesting Facts
  • Major mining countries of Uranium include Russia, Australia, Namibia, Canada and Niger and total 33% Uranium are mine in Kazakhstan.
  
  • Galena mineral contains almost 87% of Lead metal in it, Galena is sulfide mineral.
  • The best available source of Lead metal today is by recycling automobile batteries.
  

Sources
Earth's crust, Mining, Ores of Minerals   
Earth's crust, Found in Minerals, Mining, Ores of metals, Ores of Minerals   

History
  
  

Who Discovered
Not Available   
Unknown   

Discovery
In 1789   
In Middle Easterns (7000 BCE)   

Abundance
  
  

Abundance In Universe
2 * 10-8 %   
29
1 * 10-6 %   
16

Abundance In Sun
~0.0000001 %   
26
~0.000001 %   
18

Abundance In Meteorites
0.00 %   
99+
0.00 %   
23

Abundance In Earth's Crust
0.00 %   
36
0.00 %   
26

Abundance In Oceans
0.00 %   
11
0.00 %   
22

Abundance In Humans
Not Available   
0.00 %   
8

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 is also used in insecticides, hair dyes and as an anti-knocking additive for petrol. But all these are banned by the government as Lead metal is known for detrimental to health.
  

Industrial Uses
Ammunition Industry, Chemical Industry   
Chemical Industry, Electrical Industry, Electronic Industry   

Medical Uses
NA   
Surgical Instruments Manufacturing   

Other Uses
Alloys, Jewellery, Nuclear Reactor's Fuel, Sculptures, Statues   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Toxic   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.21 Blood/mg dm-3   
11

In Bone
Not Available   
30.00 p.p.m.   
10

Physical Properties

Melting Point
1,132.00 °C   
39
327.50 °C   
99+

Boiling Point
3,818.00 °C   
16
1,740.00 °C   
99+

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gray   
Gray   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
6.00   
6
1.50   
18

Brinell Hardness
2,350.00 MPa   
2
38.00 MPa   
99+

Vickers Hardness
1,960.00 MPa   
2
Not Available   

Speed of Sound
3,155.00 m/s   
25
1,190.00 m/s   
99+

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   
Pb   

Isotopes
  
  

Known Isotopes
25   
14
35   
4

Electronegativity
  
  

Pauling Electronegativity
1.38   
28
1.87   
13

Sanderson Electronegativity
Not Available   
2.29   
4

Allred Rochow Electronegativity
1.22   
26
1.55   
11

Mulliken-Jaffe Electronegativity
Not Available   
2.41   
2

Allen Electronegativity
Not Available   
1.85   
8

Electropositivity
  
  

Pauling Electropositivity
2.62   
26
1.67   
99+

Ionization Energies
  
  

1st Energy Level
597.60 kJ/mol   
99+
715.60 kJ/mol   
31

2nd Energy Level
1,420.00 kJ/mol   
99+
1,450.50 kJ/mol   
99+

3rd Energy Level
1,900.00 kJ/mol   
99+
3,081.50 kJ/mol   
23

4th Energy Level
3,145.00 kJ/mol   
99+
4,083.00 kJ/mol   
35

5th Energy Level
Not Available   
6,640.00 kJ/mol   
20

Electrochemical Equivalent
1.48 g/amp-hr   
99+
3.87 g/amp-hr   
9

Electron Work Function
3.63 eV   
30
4.25 eV   
21

Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Anti Corrosion, Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
92   
26
82   
34

Electron Configuration
[Rn] 5f3 6d1 7s2   
[Xe] 4f14 5d10 6s2 6p2   

Crystal Structure
Orthorhombic (ORTH)   
Face Centered Cubic (FCC)   

Crystal Lattice
ORTH-Crystal-Structure-of-Uranium.jpg#100   
FCC-Crystal-Structure-of-Lead.jpg#100   

Atom
  
  

Number of Protons
92   
26
82   
34

Number of Neutrons
146   
13
125   
19

Number of Electrons
92   
26
82   
34

Radius of an Atom
  
  

Atomic Radius
156.00 pm   
29
175.00 pm   
19

Covalent Radius
196.00 pm   
14
146.00 pm   
38

Van der Waals Radius
186.00 pm   
33
202.00 pm   
27

Atomic Weight
238.03 amu   
21
207.20 amu   
30

Atomic Volume
12.59 cm3/mol   
40
18.17 cm3/mol   
27

Adjacent Atomic Numbers
  
  

Previous Element
Thallium
  

Next Element
Neptunium
  
Bismuth
  

Valence Electron Potential
170.00 (-eV)   
4
24.20 (-eV)   
99+

Lattice Constant
295.08 pm   
99+
495.08 pm   
16

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
11.34 g/cm3   
33

Density When Liquid (at m.p.)
17.30 g/cm3   
7
10.66 g/cm3   
15

Tensile Strength
Not Available   
12.00 MPa   
20

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
1.64 (Pa)   
7

Vapor Pressure at 2000 K
0.01 (Pa)   
20
Not Available   

Elasticity properties
  
  

Shear Modulus
111.00 GPa   
10
5.60 GPa   
99+

Bulk Modulus
100.00 GPa   
16
46.00 GPa   
24

Young's Modulus
208.00 GPa   
10
16.00 GPa   
99+

Poisson Ratio
0.23   
30
0.44   
3

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
18.80   
10
11.35   
25

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Poor Conductor   
Poor Conductor   

Resistivity
0.28 nΩ·m   
99+
208.00 nΩ·m   
16

Electrical Conductivity
0.04 106/cm Ω   
37
0.05 106/cm Ω   
36

Electron Affinity
Not Available   
35.10 kJ/mol   
28

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
26.65 J/mol·K   
26

Thermal Conductivity
27.50 W/m·K   
40
35.30 W/m·K   
38

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
13.90 µm/(m·K)   
27
28.90 µm/(m·K)   
13

Enthalpy
  
  

Enthalpy of Vaporization
477.00 kJ/mol   
13
179.40 kJ/mol   
99+

Enthalpy of Fusion
15.48 kJ/mol   
19
4.77 kJ/mol   
99+

Enthalpy of Atomization
489.50 kJ/mol   
14
194.60 kJ/mol   
99+

Standard Molar Entropy
50.20 J/mol.K   
31
64.80 J/mol.K   
17

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