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Curium vs Plutonium

Curium
Plutonium
Plutonium vs Curium


Periodic Table
Symbol
Cm   
Pu   
Group Number
Not Available   
0   
18
Period Number
7   
7   
Block
f block   
f block   
Element Family
Actinide   
Actinide   
CAS Number
7440519   
36
7440075   
99+
Space Group Name
Not Available   
P121/m1   
Space Group Number
Not Available   
11.00   
13
Facts
Interesting Facts
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
  
  • 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
Bombarding Plutonium with Helium Ions   
Mining, Ores of metals   
History
  
  
Who Discovered
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso   
Glenn T. Seaborg, Arthur Wahl, Joseph W. Kennedy, Edwin McMillan   
Discovery
In 1944   
In Between 1940 1941   
Abundance
  
  
Uses
Uses & Benefits
  • Curium metal is used to provide power to electrical equipment for space missions.
  
  • 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
NA   
Aerospace Industry, Ammunition Industry   
Medical Uses
NA   
NA   
Other Uses
Research Purposes   
Alloys   
Biological Properties
  
  
Toxicity
Unknown   
Toxic   
Present in Human Body
No   
No   
In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
37
In Bone
0.00 p.p.m.   
36
0.00 p.p.m.   
36
Physical Properties
Melting Point
1,340.00 °C   
34
639.50 °C   
99+
Boiling Point
3,110.00 °C   
30
3,235.00 °C   
24
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silver   
Silvery White   
Luster
Metallic   
NA   
Hardness
  
  
Speed of Sound
Not Available   
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
Cm   
Pu   
Isotopes
  
  
Known Isotopes
15   
24
20   
19
Electronegativity
  
  
Pauling Electronegativity
1.30   
32
1.28   
33
Allred Rochow Electronegativity
1.20   
27
1.22   
26
Electropositivity
  
  
Pauling Electropositivity
2.70   
22
2.72   
21
Ionization Energies
  
  
1st Energy Level
581.00 kJ/mol   
99+
584.70 kJ/mol   
99+
2nd Energy Level
1,196.00 kJ/mol   
99+
1,128.00 kJ/mol   
99+
3rd Energy Level
2,026.00 kJ/mol   
99+
2,084.00 kJ/mol   
99+
4th Energy Level
3,550.00 kJ/mol   
99+
3,338.00 kJ/mol   
99+
Electrochemical Equivalent
3.07 g/amp-hr   
16
2.28 g/amp-hr   
22
Electron Work Function
Not Available   
Not Available   
Other Chemical Properties
Ionization, Radioactive Isotopes   
Corrosion, Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
96   
22
94   
24
Electron Configuration
[Rn] 5f7 6d1 7s2   
[Rn] 5f6 7s2   
Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Monoclinic (MON)   
Crystal Lattice
DHCP-Crystal-Structure-of-Curium.jpg#100   
MON-Crystal-Structure-of-Plutonium.jpg#100   
Atom
  
  
Number of Protons
96   
22
94   
24
Number of Neutrons
151   
10
150   
11
Number of Electrons
96   
22
94   
24
Radius of an Atom
  
  
Atomic Radius
174.00 pm   
20
159.00 pm   
28
Covalent Radius
169.00 pm   
26
187.00 pm   
20
Van der Waals Radius
200.00 pm   
28
200.00 pm   
28
Atomic Weight
247.00 amu   
18
244.00 amu   
19
Atomic Volume
18.28 cm3/mol   
26
12.32 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Americium
  
Neptunium
  
Next Element
Berkelium
  
Americium
  
Valence Electron Potential
44.50 (-eV)   
38
64.90 (-eV)   
21
Lattice Constant
Not Available   
618.30 pm   
4
Lattice Angles
NA   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
13.51 g/cm3   
25
19.82 g/cm3   
13
Density When Liquid (at m.p.)
13.85 g/cm3   
10
16.63 g/cm3   
8
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
26
Vapor Pressure at 2000 K
Not Available   
2.20 (Pa)   
12
Elasticity properties
  
  
Shear Modulus
Not Available   
43.00 GPa   
18
Young's Modulus
Not Available   
96.00 GPa   
21
Poisson Ratio
Not Available   
0.21   
32
Other Mechanical Properties
Unknown   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
13.51   
17
19.84   
7
Magnetic Ordering
Antiferromagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Poor Conductor   
Resistivity
1.25 nΩ·m   
99+
1.46 nΩ·m   
99+
Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+
Thermal Properties
Specific Heat
Not Available   
0.13 J/(kg K)   
39
Molar Heat Capacity
Not Available   
35.50 J/mol·K   
3
Thermal Conductivity
Not Available   
6.74 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
46.70 µm/(m·K)   
6
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
344.00 kJ/mol   
25
Enthalpy of Fusion
15.00 kJ/mol   
21
2.82 kJ/mol   
99+
Enthalpy of Atomization
Not Available   
360.00 kJ/mol   
26
Standard Molar Entropy
Not Available   
Not Available   
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