Curium vs Iron
Periodic Table
Symbol
Cm
Fe
Group Number
Not Available
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
Not Available
Im_ 3m
Space Group Number
Not Available
229.00
1
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
Unknown
Discovery
In 1944
Before 5000 BC
Abundance
Abundance In Universe
Not Available
1.1 * 10-1 %
1
Abundance In Sun
~-9999 %
~0.1 %
1
Abundance In Meteorites
Not Available
22.00 %
1
Abundance In Earth's Crust
Not Available
6.30 %
2
Abundance In Oceans
Not Available
0.00 %
12
Abundance In Humans
Not Available
0.01 %
5
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
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
Pharmaceutical Industry, Surgical Instruments Manufacturing
Other Uses
Research Purposes
Alloys, Sculptures, Statues
Biological Properties
Toxicity
Unknown
Non Toxic
Present in Human Body
No
Yes
In Blood
0.00 Blood/mg dm-3
37
447.00 Blood/mg dm-3
3
In Bone
0.00 p.p.m.
36
380.00 p.p.m.
5
Physical Properties
Melting Point
1,340.00 °C
34
1,535.00 °C
25
Boiling Point
3,110.00 °C
30
2,750.00 °C
37
Appearance
Physical State
Solid
Solid
Color
Silver
Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
Not Available
4.00
10
Brinell Hardness
Not Available
200.00 MPa
40
Vickers Hardness
Not Available
608.00 MPa
18
Speed of Sound
Not Available
5,120.00 m/s
8
Optical Properties
Reflectivity
Not Available
65.00 %
12
Allotropes
No
Yes
α Allotropes
Not Available
Ferrite (alpha Iron)
β Allotropes
Not Available
beta Iron
γ Allotropes
Not Available
gamma Iron
Chemical Properties
Chemical Formula
Cm
Fe
Isotopes
Known Isotopes
15
24
26
13
Electronegativity
Pauling Electronegativity
1.30
32
1.83
14
Sanderson Electronegativity
Not Available
2.20
7
Allred Rochow Electronegativity
1.20
27
1.64
8
Allen Electronegativity
Not Available
1.80
12
Electropositivity
Pauling Electropositivity
2.70
22
2.17
40
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
36
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
16
5th Energy Level
Not Available
7,240.00 kJ/mol
16
6th Energy Level
Not Available
9,560.00 kJ/mol
14
7th Energy level
Not Available
12,060.00 kJ/mol
15
8th Energy Level
Not Available
14,580.00 kJ/mol
14
9th Energy Level
Not Available
22,540.00 kJ/mol
5
10th Energy Level
Not Available
25,290.00 kJ/mol
8
11th Energy Level
Not Available
28,000.00 kJ/mol
9
12th Energy Level
Not Available
31,920.00 kJ/mol
9
13th Energy Level
Not Available
34,830.00 kJ/mol
9
14th Energy Level
Not Available
37,840.00 kJ/mol
11
15th Energy Level
Not Available
44,100.00 kJ/mol
11
16th Energy Level
Not Available
47,206.00 kJ/mol
13
17th Energy Level
Not Available
122,200.00 kJ/mol
1
18th Energy Level
Not Available
131,000.00 kJ/mol
2
19th Energy Level
Not Available
140,500.00 kJ/mol
3
20th Energy Level
Not Available
152,600.00 kJ/mol
5
21st Energy Level
Not Available
163,000.00 kJ/mol
5
22nd Energy Level
Not Available
173,600.00 kJ/mol
4
23rd Energy Level
Not Available
188,100.00 kJ/mol
4
24th Energy Level
Not Available
195,200.00 kJ/mol
1
Electrochemical Equivalent
3.07 g/amp-hr
16
0.69 g/amp-hr
99+
Electron Work Function
Not Available
4.70 eV
10
Other Chemical Properties
Ionization, Radioactive Isotopes
Corrosion, Ionization, Solubility
Atomic Properties
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
10
30
99+
Number of Electrons
96
22
26
99+
Radius of an Atom
Atomic Radius
174.00 pm
20
126.00 pm
99+
Covalent Radius
169.00 pm
26
132.00 pm
99+
Van der Waals Radius
200.00 pm
28
200.00 pm
28
Atomic Weight
247.00 amu
18
55.85 amu
99+
Atomic Volume
18.28 cm3/mol
26
7.10 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
44.50 (-eV)
38
67.00 (-eV)
20
Lattice Constant
Not Available
286.65 pm
99+
Lattice Angles
NA
π/2, π/2, π/2
Lattice C/A Ratio
Not Available
Not Available
Mechanical Properties
Density
Density At Room Temperature
13.51 g/cm3
25
7.87 g/cm3
99+
Density When Liquid (at m.p.)
13.85 g/cm3
10
6.98 g/cm3
35
Tensile Strength
Not Available
11,000.00 MPa
1
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.00 (Pa)
28
Vapor Pressure at 2000 K
Not Available
36.80 (Pa)
5
Elasticity properties
Shear Modulus
Not Available
82.00 GPa
11
Bulk Modulus
Not Available
170.00 GPa
10
Young's Modulus
Not Available
211.00 GPa
9
Poisson Ratio
Not Available
0.29
15
Other Mechanical Properties
Unknown
Ductile, Malleable, Weldable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
13.51
17
7.20
99+
Magnetic Ordering
Antiferromagnetic
Ferromagnetic
Permeability
Not Available
6.3 * 10-3 H/m
1
Susceptibility
Not Available
2,00,000.00
1
Electrical Properties
Electrical Property
Unknown
Conductor
Resistivity
1.25 nΩ·m
99+
96.10 nΩ·m
32
Electrical Conductivity
Not Available
0.10 106/cm Ω
20
Electron Affinity
Not Available
15.70 kJ/mol
34
Thermal Properties
Specific Heat
Not Available
0.44 J/(kg K)
13
Molar Heat Capacity
Not Available
25.10 J/mol·K
99+
Thermal Conductivity
Not Available
80.40 W/m·K
22
Critical Temperature
Not Available
Not Available
Thermal Expansion
Not Available
11.80 µm/(m·K)
33
Enthalpy
Enthalpy of Vaporization
Not Available
351.00 kJ/mol
23
Enthalpy of Fusion
15.00 kJ/mol
21
14.90 kJ/mol
22
Enthalpy of Atomization
Not Available
414.20 kJ/mol
19
Standard Molar Entropy
Not Available
27.30 J/mol.K
99+
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