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Curium vs Iron

Curium
Iron
Iron vs Curium


Periodic Table
Symbol
Cm  
Fe  
Group Number
3  
15
8  
10
Period Number
7  
4  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440519  
36
7439896  
99+
Space Group Name
-  
Im_ 3m  
Space Group Number
225.00  
3
229.00  
2
Facts
Interesting Facts
  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
  
  • Iron is not always magnetic in nature, its allotrope are ferromagnetic and the B allotrope is nonmagnetic.
  • The blood consists Iron in hemoglobin molecules to transfer Oxygen in the body.
  
Sources
Bombarding Plutonium with Helium Ions  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso  
-  
Discovery
In 1944  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
35
0.11 %  
1
Abundance In Sun
0.00 %  
30
0.10 %  
1
Abundance In Meteorites
0.00 %  
99+
22.00 %  
1
Abundance In Earth's Crust
0.00 %  
99+
6.30 %  
2
Abundance In Oceans
-  
0.00 %  
12
Abundance In Humans
0.00 %  
24
0.01 %  
6
Uses
Uses & Benefits
  • Curium metal is used to provide power to electrical equipment for space missions.
  
  • Iron metal alloy steel is used in the application of civil engineering and manufacturing.
  • Alloys of iron with nickel, vanadium, chromium, tungsten and manganese have very useful properties.
  
Industrial Uses
-  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Research Purposes  
Alloys, Sculptures, Statues  
Biological Properties
  
  
Toxicity
-  
Non Toxic  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
447.00 Blood/mg dm-3  
3
In Bone
0.00 p.p.m.  
99+
380.00 p.p.m.  
5
Physical
Melting Point
1,340.00 °C  
34
1,535.00 °C  
25
Boiling Point
3,110.00 °C  
31
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
2.00  
17
4.00  
11
Brinell Hardness
320.00 MPa  
40
200.00 MPa  
99+
Vickers Hardness
461.00 MPa  
37
608.00 MPa  
27
Speed of Sound
2,260.00 m/s  
99+
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.30  
99+
2.60  
4
Reflectivity
60.00 %  
23
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Cm  
Fe  
Isotopes
  
  
Known Isotopes
15  
24
26  
13
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.83  
15
Sanderson Electronegativity
1.30  
25
2.20  
8
Allred Rochow Electronegativity
1.20  
28
1.64  
9
Mulliken-Jaffe Electronegativity
1.30  
33
1.83  
16
Allen Electronegativity
1.30  
40
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
2.17  
99+
Ionization Energies
  
  
1st Energy Level
581.00 kJ/mol  
99+
762.50 kJ/mol  
17
2nd Energy Level
1,196.00 kJ/mol  
99+
1,561.90 kJ/mol  
37
3rd Energy Level
2,026.00 kJ/mol  
99+
2,957.00 kJ/mol  
29
4th Energy Level
3,550.00 kJ/mol  
99+
5,290.00 kJ/mol  
25
5th Energy Level
5,810.00 kJ/mol  
99+
7,240.00 kJ/mol  
25
6th Energy Level
5,810.00 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
5,810.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
5,810.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
6,690.00 kJ/mol  
37
22,540.00 kJ/mol  
5
10th Energy Level
5,810.00 kJ/mol  
99+
25,290.00 kJ/mol  
8
11th Energy Level
5,810.00 kJ/mol  
99+
28,000.00 kJ/mol  
9
12th Energy Level
58,100.00 kJ/mol  
19
31,920.00 kJ/mol  
31
13th Energy Level
5,810.00 kJ/mol  
99+
34,830.00 kJ/mol  
9
14th Energy Level
5,810.00 kJ/mol  
40
37,840.00 kJ/mol  
11
15th Energy Level
58,100.00 kJ/mol  
99+
44,100.00 kJ/mol  
99+
16th Energy Level
58,100.00 kJ/mol  
99+
47,206.00 kJ/mol  
99+
17th Energy Level
581.00 kJ/mol  
99+
122,200.00 kJ/mol  
1
18th Energy Level
5,810.00 kJ/mol  
99+
131,000.00 kJ/mol  
2
19th Energy Level
581.00 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
581.00 kJ/mol  
99+
152,600.00 kJ/mol  
5
21st Energy Level
5,810.00 kJ/mol  
20
163,000.00 kJ/mol  
5
22nd Energy Level
581.00 kJ/mol  
99+
173,600.00 kJ/mol  
4
23rd Energy Level
5,810.00 kJ/mol  
20
188,100.00 kJ/mol  
4
24th Energy Level
581.00 kJ/mol  
99+
195,200.00 kJ/mol  
1
25th Energy Level
581.00 kJ/mol  
99+
762.00 kJ/mol  
15
26th Energy Level
581.00 kJ/mol  
99+
762.50 kJ/mol  
15
27th Energy Level
581.00 kJ/mol  
99+
762.50 kJ/mol  
14
28th Energy Level
581.00 kJ/mol  
99+
762.50 kJ/mol  
20
29th Energy Level
581.00 kJ/mol  
99+
762.50 kJ/mol  
20
30th Energy Level
581.00 kJ/mol  
99+
762.00 kJ/mol  
15
Electrochemical Equivalent
3.07 g/amp-hr  
19
0.69 g/amp-hr  
99+
Electron Work Function
4.50 eV  
19
4.70 eV  
15
Other Chemical Properties
Ionization, Radioactive Isotopes  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
96  
22
26  
99+
Electron Configuration
[Rn] 5f7 6d1 7s2  
[Ar] 3d6 4s2  
Crystal Structure
Double Hexagonal Close Packed (DHCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
DHCP-Crystal-Structure-of-Curium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
96  
22
26  
99+
Number of Neutrons
151  
11
30  
99+
Number of Electrons
96  
22
26  
99+
Radius of an Atom
  
  
Atomic Radius
174.00 pm  
22
126.00 pm  
99+
Covalent Radius
169.00 pm  
28
132.00 pm  
99+
Van der Waals Radius
200.00 pm  
35
200.00 pm  
35
Atomic Weight
247.00 amu  
18
55.85 amu  
99+
Atomic Volume
18.28 cm3/mol  
38
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Americium
  
Manganese
  
Next Element
Berkelium
  
Cobalt
  
Valence Electron Potential
44.50 (-eV)  
39
67.00 (-eV)  
20
Lattice Constant
336.25 pm  
99+
286.65 pm  
99+
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.67  
11
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
13.51 g/cm3  
26
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
13.85 g/cm3  
25
6.98 g/cm3  
99+
Tensile Strength
350.00 MPa  
12
11,000.00 MPa  
1
Viscosity
0.00  
25
0.00  
19
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
0.00 (Pa)  
30
Vapor Pressure at 2000 K
0.00 (Pa)  
24
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
32.00 GPa  
24
82.00 GPa  
11
Bulk Modulus
40.00 GPa  
38
170.00 GPa  
10
Young's Modulus
0.00 GPa  
99+
211.00 GPa  
9
Poisson Ratio
0.35  
9
0.29  
15
Other Mechanical Properties
-  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
13.51  
28
7.20  
99+
Magnetic Ordering
Antiferromagnetic  
Ferromagnetic  
Permeability
0.00 H/m  
17
0.01 H/m  
1
Susceptibility
0.00  
24
200,000.00  
1
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
1.25 nΩ·m  
99+
96.10 nΩ·m  
32
Electrical Conductivity
0.13 106/cm Ω  
19
0.10 106/cm Ω  
24
Electron Affinity
0.00 kJ/mol  
99+
15.70 kJ/mol  
40
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.44 J/(kg K)  
13
Molar Heat Capacity
27.50 J/mol·K  
21
25.10 J/mol·K  
99+
Thermal Conductivity
11.00 W/m·K  
99+
80.40 W/m·K  
22
Critical Temperature
1,340.00 K  
99+
1,811.00 K  
29
Thermal Expansion
11.60 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
331.60 kJ/mol  
40
351.00 kJ/mol  
33
Enthalpy of Fusion
15.00 kJ/mol  
22
14.90 kJ/mol  
23
Enthalpy of Atomization
-  
414.20 kJ/mol  
24
Standard Molar Entropy
52.50 J/mol.K  
36
27.30 J/mol.K  
99+
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