Home
Compare Metals


Lead vs Plutonium


Plutonium vs Lead


Periodic Table

Symbol
Pb   
Pu   

Group Number
14   
4
0   
18

Period Number
6   
7   

Block
p block   
f block   

Element Family
Post-​Transition   
Actinide   

CAS Number
7439921   
99+
7440075   
99+

Space Group Name
Fm_ 3m   
P121/m1   

Space Group Number
225.00   
2
11.00   
13

Facts

Interesting Facts
  • 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.
  
  • Plutonium metal if obtain from ores of uranium metal.
  • Plutonium metal is very sensitive to the change in atmospheric conditions like temperature and pressure.
  

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

History
  
  

Who Discovered
Unknown   
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan   

Discovery
In Middle Easterns (7000 BCE)   
In Between 1940 1941   

Abundance
  
  

Abundance In Universe
1 * 10-6 %   
16
Not Available   

Abundance In Sun
~0.000001 %   
18
~-9999 %   

Abundance In Meteorites
0.00 %   
23
Not Available   

Abundance In Earth's Crust
0.00 %   
26
Not Available   

Abundance In Oceans
0.00 %   
22
Not Available   

Abundance In Humans
0.00 %   
8
Not Available   

Uses

Uses & Benefits
  • 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.
  
  • Plutonium was used in atomic bombs and still it is being used in various weapons and Ammunition industry.
  • It is also used in nuclear power plant as source of energy for space missions.
  

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

Medical Uses
Surgical Instruments Manufacturing   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Toxic   
Toxic   

Present in Human Body
Yes   
No   

In Blood
0.21 Blood/mg dm-3   
11
0.00 Blood/mg dm-3   
37

In Bone
30.00 p.p.m.   
10
0.00 p.p.m.   
36

Physical Properties

Melting Point
327.50 °C   
99+
639.50 °C   
99+

Boiling Point
1,740.00 °C   
99+
3,235.00 °C   
24

Appearance
  
  

Physical State
Solid   
Solid   

Color
Gray   
Silvery White   

Luster
Metallic   
NA   

Hardness
  
  

Mohs Hardness
1.50   
18
Not Available   

Brinell Hardness
38.00 MPa   
99+
Not Available   

Speed of Sound
1,190.00 m/s   
99+
2,260.00 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
Pb   
Pu   

Isotopes
  
  

Known Isotopes
35   
4
20   
19

Electronegativity
  
  

Pauling Electronegativity
1.87   
13
1.28   
33

Sanderson Electronegativity
2.29   
4
Not Available   

Allred Rochow Electronegativity
1.55   
11
1.22   
26

Mulliken-Jaffe Electronegativity
2.41   
2
Not Available   

Allen Electronegativity
1.85   
8
Not Available   

Electropositivity
  
  

Pauling Electropositivity
1.67   
99+
2.72   
21

Ionization Energies
  
  

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

2nd Energy Level
1,450.50 kJ/mol   
99+
1,128.00 kJ/mol   
99+

3rd Energy Level
3,081.50 kJ/mol   
23
2,084.00 kJ/mol   
99+

4th Energy Level
4,083.00 kJ/mol   
35
3,338.00 kJ/mol   
99+

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

Electrochemical Equivalent
3.87 g/amp-hr   
9
2.28 g/amp-hr   
22

Electron Work Function
4.25 eV   
21
Not Available   

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

Atomic Properties

Atomic Number
82   
34
94   
24

Electron Configuration
[Xe] 4f14 5d10 6s2 6p2   
[Rn] 5f6 7s2   

Crystal Structure
Face Centered Cubic (FCC)   
Monoclinic (MON)   

Crystal Lattice
FCC-Crystal-Structure-of-Lead.jpg#100   
MON-Crystal-Structure-of-Plutonium.jpg#100   

Atom
  
  

Number of Protons
82   
34
94   
24

Number of Neutrons
125   
19
150   
11

Number of Electrons
82   
34
94   
24

Radius of an Atom
  
  

Atomic Radius
175.00 pm   
19
159.00 pm   
28

Covalent Radius
146.00 pm   
38
187.00 pm   
20

Van der Waals Radius
202.00 pm   
27
200.00 pm   
28

Atomic Weight
207.20 amu   
30
244.00 amu   
19

Atomic Volume
18.17 cm3/mol   
27
12.32 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Thallium
  
Neptunium
  

Next Element
Bismuth
  
Americium
  

Valence Electron Potential
24.20 (-eV)   
99+
64.90 (-eV)   
21

Lattice Constant
495.08 pm   
16
618.30 pm   
4

Lattice Angles
π/2, π/2, π/2   
NA   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
11.34 g/cm3   
33
19.82 g/cm3   
13

Density When Liquid (at m.p.)
10.66 g/cm3   
15
16.63 g/cm3   
8

Tensile Strength
12.00 MPa   
20
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
1.64 (Pa)   
7
0.00 (Pa)   
26

Vapor Pressure at 2000 K
Not Available   
2.20 (Pa)   
12

Elasticity properties
  
  

Shear Modulus
5.60 GPa   
99+
43.00 GPa   
18

Bulk Modulus
46.00 GPa   
24
Not Available   

Young's Modulus
16.00 GPa   
99+
96.00 GPa   
21

Poisson Ratio
0.44   
3
0.21   
32

Other Mechanical Properties
Ductile, Malleable   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
11.35   
25
19.84   
7

Magnetic Ordering
Diamagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Poor Conductor   
Poor Conductor   

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

Electrical Conductivity
0.05 106/cm Ω   
36
0.01 106/cm Ω   
99+

Electron Affinity
35.10 kJ/mol   
28
Not Available   

Thermal Properties

Specific Heat
0.13 J/(kg K)   
39
0.13 J/(kg K)   
39

Molar Heat Capacity
26.65 J/mol·K   
26
35.50 J/mol·K   
3

Thermal Conductivity
35.30 W/m·K   
38
6.74 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
28.90 µm/(m·K)   
13
46.70 µm/(m·K)   
6

Enthalpy
  
  

Enthalpy of Vaporization
179.40 kJ/mol   
99+
344.00 kJ/mol   
25

Enthalpy of Fusion
4.77 kJ/mol   
99+
2.82 kJ/mol   
99+

Enthalpy of Atomization
194.60 kJ/mol   
99+
360.00 kJ/mol   
26

Standard Molar Entropy
64.80 J/mol.K   
17
Not Available   

Periodic Table >>
<< All

Compare Post Transition Metals

Post-Transition Metals

Post-Transition Metals

» More Post-Transition Metals

Compare Post Transition Metals

» More Compare Post Transition Metals