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Mendelevium vs Iron

Mendelevium
Iron
Iron vs Mendelevium


Periodic Table
Symbol
Md  
Fe  
Group Number
3  
15
8  
10
Period Number
7  
4  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440111  
99+
7439896  
99+
Space Group Name
-  
Im_ 3m  
Space Group Number
194.00  
7
229.00  
2
Facts
Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  
  • 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 Einsteinium with Helium Ions  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
-  
Discovery
In 1955  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.11 %  
1
Abundance In Sun
-  
0.10 %  
1
Abundance In Meteorites
0.00 %  
99+
22.00 %  
1
Abundance In Earth's Crust
-  
6.30 %  
2
Abundance In Oceans
-  
0.00 %  
12
Abundance In Humans
0.00 %  
24
0.01 %  
6
Uses
Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  
  • 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
-  
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
827.00 °C  
99+
1,535.00 °C  
25
Boiling Point
0.00 °C  
99+
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
-  
4.00  
11
Brinell Hardness
350.00 MPa  
36
200.00 MPa  
99+
Vickers Hardness
0.00 MPa  
99+
608.00 MPa  
27
Speed of Sound
2,680.00 m/s  
99+
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.30  
99+
2.60  
4
Reflectivity
66.00 %  
17
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Md  
Fe  
Isotopes
  
  
Known Isotopes
16  
23
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
635.00 kJ/mol  
99+
762.50 kJ/mol  
17
2nd Energy Level
1,235.00 kJ/mol  
99+
1,561.90 kJ/mol  
37
3rd Energy Level
2,470.00 kJ/mol  
99+
2,957.00 kJ/mol  
29
4th Energy Level
3,840.00 kJ/mol  
99+
5,290.00 kJ/mol  
25
5th Energy Level
6,350.00 kJ/mol  
36
7,240.00 kJ/mol  
25
6th Energy Level
6,350.00 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
6,350.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
6,350.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
6,350.00 kJ/mol  
99+
22,540.00 kJ/mol  
5
10th Energy Level
6,350.00 kJ/mol  
99+
25,290.00 kJ/mol  
8
11th Energy Level
6,400.00 kJ/mol  
99+
28,000.00 kJ/mol  
9
12th Energy Level
60,100.00 kJ/mol  
16
31,920.00 kJ/mol  
31
13th Energy Level
6,350.00 kJ/mol  
37
34,830.00 kJ/mol  
9
14th Energy Level
1,150.00 kJ/mol  
99+
37,840.00 kJ/mol  
11
15th Energy Level
63,500.00 kJ/mol  
37
44,100.00 kJ/mol  
99+
16th Energy Level
635.00 kJ/mol  
99+
47,206.00 kJ/mol  
99+
17th Energy Level
1,107.00 kJ/mol  
21
122,200.00 kJ/mol  
1
18th Energy Level
6,350.00 kJ/mol  
39
131,000.00 kJ/mol  
2
19th Energy Level
635.00 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
635.00 kJ/mol  
40
152,600.00 kJ/mol  
5
21st Energy Level
6,350.00 kJ/mol  
13
163,000.00 kJ/mol  
5
22nd Energy Level
635.00 kJ/mol  
34
173,600.00 kJ/mol  
4
23rd Energy Level
6,350.00 kJ/mol  
13
188,100.00 kJ/mol  
4
24th Energy Level
635.00 kJ/mol  
36
195,200.00 kJ/mol  
1
25th Energy Level
635.00 kJ/mol  
38
762.00 kJ/mol  
15
26th Energy Level
635.00 kJ/mol  
37
762.50 kJ/mol  
15
27th Energy Level
635.00 kJ/mol  
39
762.50 kJ/mol  
14
28th Energy Level
635.00 kJ/mol  
99+
762.50 kJ/mol  
20
29th Energy Level
635.00 kJ/mol  
99+
762.50 kJ/mol  
20
30th Energy Level
635.00 kJ/mol  
40
762.00 kJ/mol  
15
Electrochemical Equivalent
3.21 g/amp-hr  
13
0.69 g/amp-hr  
99+
Electron Work Function
3.89 eV  
37
4.70 eV  
15
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
101  
17
26  
99+
Electron Configuration
[Rn] 5f13 7s2  
[Ar] 3d6 4s2  
Crystal Structure
Not Known  
Body Centered Cubic (BCC)  
Crystal Lattice
Unknown-Crystal-Structure-of-Mendelevium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
101  
17
26  
99+
Number of Neutrons
157  
8
30  
99+
Number of Electrons
101  
17
26  
99+
Radius of an Atom
  
  
Atomic Radius
175.00 pm  
21
126.00 pm  
99+
Covalent Radius
175.00 pm  
25
132.00 pm  
99+
Van der Waals Radius
246.00 pm  
12
200.00 pm  
35
Atomic Weight
258.00 amu  
14
55.85 amu  
99+
Atomic Volume
19.90 cm3/mol  
32
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Fermium
  
Manganese
  
Next Element
Nobelium
  
Cobalt
  
Valence Electron Potential
63.70 (-eV)  
23
67.00 (-eV)  
20
Lattice Constant
-  
286.65 pm  
99+
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
36
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
10.30 g/cm3  
38
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
10.30 g/cm3  
39
6.98 g/cm3  
99+
Tensile Strength
80.00 MPa  
29
11,000.00 MPa  
1
Viscosity
0.00  
25
0.00  
19
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
30
Vapor Pressure at 2000 K
0.00 (Pa)  
37
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
32.00 GPa  
24
82.00 GPa  
11
Bulk Modulus
0.00 GPa  
99+
170.00 GPa  
10
Young's Modulus
12.00 GPa  
99+
211.00 GPa  
9
Poisson Ratio
0.30  
14
0.29  
15
Other Mechanical Properties
-  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
13.50  
29
7.20  
99+
Magnetic Ordering
-  
Ferromagnetic  
Permeability
0.00 H/m  
11
0.01 H/m  
1
Susceptibility
0.00  
24
200,000.00  
1
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.63 nΩ·m  
99+
96.10 nΩ·m  
32
Electrical Conductivity
0.00 106/cm Ω  
99+
0.10 106/cm Ω  
24
Electron Affinity
50.00 kJ/mol  
26
15.70 kJ/mol  
40
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.44 J/(kg K)  
13
Molar Heat Capacity
27.00 J/mol·K  
29
25.10 J/mol·K  
99+
Thermal Conductivity
0.00 W/m·K  
99+
80.40 W/m·K  
22
Critical Temperature
1,100.00 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
380.50 kJ/mol  
26
351.00 kJ/mol  
33
Enthalpy of Fusion
-  
14.90 kJ/mol  
23
Enthalpy of Atomization
410.80 kJ/mol  
25
414.20 kJ/mol  
24
Standard Molar Entropy
37.40 J/mol.K  
99+
27.30 J/mol.K  
99+
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