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Roentgenium vs Iron

Roentgenium
Iron
Iron vs Roentgenium


Periodic Table
Symbol
Rg  
Fe  
Group Number
11  
7
8  
10
Period Number
7  
4  
Block
d block  
d block  
Element Family
-  
Transition Metal  
CAS Number
54386242  
1
7439896  
99+
Space Group Name
-  
Im_ 3m  
Space Group Number
194.00  
7
229.00  
2
Facts
Interesting Facts
Roentgenium is a highly unstable synthetic element.  
  • 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
Synthetically Produced  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
-  
Discovery
In 1994  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.11 %  
1
Abundance In Sun
-  
0.10 %  
1
Abundance In Meteorites
-  
22.00 %  
1
Abundance In Earth's Crust
-  
6.30 %  
2
Abundance In Oceans
-  
0.00 %  
12
Abundance In Humans
-  
0.01 %  
6
Uses
Uses & Benefits
  • Currently known uses of Roentgenium 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
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
-  
1,535.00 °C  
25
Boiling Point
2,800.00 °C  
38
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Gray  
Luster
Unknown Luster  
Metallic  
Hardness
  
  
Mohs Hardness
-  
4.00  
11
Brinell Hardness
700.00 MPa  
17
200.00 MPa  
99+
Vickers Hardness
450.00 MPa  
38
608.00 MPa  
27
Speed of Sound
3,430.00 m/s  
32
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.30  
99+
2.60  
4
Reflectivity
64.00 %  
19
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Rg  
Fe  
Isotopes
  
  
Known Isotopes
1  
34
26  
13
Electronegativity
  
  
Pauling Electronegativity
0.00  
99+
1.83  
15
Sanderson Electronegativity
1.90  
13
2.20  
8
Allred Rochow Electronegativity
1.30  
25
1.64  
9
Mulliken-Jaffe Electronegativity
0.90  
99+
1.83  
16
Allen Electronegativity
0.80  
99+
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
2.20  
39
2.17  
99+
Ionization Energies
  
  
1st Energy Level
1,022.70 kJ/mol  
3
762.50 kJ/mol  
17
2nd Energy Level
2,074.40 kJ/mol  
10
1,561.90 kJ/mol  
37
3rd Energy Level
3,077.90 kJ/mol  
24
2,957.00 kJ/mol  
29
4th Energy Level
4,052.40 kJ/mol  
99+
5,290.00 kJ/mol  
25
5th Energy Level
5,306.70 kJ/mol  
99+
7,240.00 kJ/mol  
25
6th Energy Level
11,100.00 kJ/mol  
10
9,560.00 kJ/mol  
20
7th Energy level
5,800.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
5,800.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
5,650.00 kJ/mol  
99+
22,540.00 kJ/mol  
5
10th Energy Level
5,800.00 kJ/mol  
99+
25,290.00 kJ/mol  
8
11th Energy Level
8,300.00 kJ/mol  
24
28,000.00 kJ/mol  
9
12th Energy Level
8,300.00 kJ/mol  
99+
31,920.00 kJ/mol  
31
13th Energy Level
8,700.00 kJ/mol  
16
34,830.00 kJ/mol  
9
14th Energy Level
8,300.00 kJ/mol  
16
37,840.00 kJ/mol  
11
15th Energy Level
87,000.00 kJ/mol  
9
44,100.00 kJ/mol  
99+
16th Energy Level
83,000.00 kJ/mol  
11
47,206.00 kJ/mol  
99+
17th Energy Level
830.80 kJ/mol  
30
122,200.00 kJ/mol  
1
18th Energy Level
8,300.00 kJ/mol  
19
131,000.00 kJ/mol  
2
19th Energy Level
580.00 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
580.00 kJ/mol  
99+
152,600.00 kJ/mol  
5
21st Energy Level
5,800.00 kJ/mol  
21
163,000.00 kJ/mol  
5
22nd Energy Level
580.00 kJ/mol  
99+
173,600.00 kJ/mol  
4
23rd Energy Level
5,800.00 kJ/mol  
21
188,100.00 kJ/mol  
4
24th Energy Level
538.70 kJ/mol  
99+
195,200.00 kJ/mol  
1
25th Energy Level
0.00 kJ/mol  
99+
762.00 kJ/mol  
15
26th Energy Level
580.00 kJ/mol  
99+
762.50 kJ/mol  
15
27th Energy Level
580.00 kJ/mol  
99+
762.50 kJ/mol  
14
28th Energy Level
880.00 kJ/mol  
8
762.50 kJ/mol  
20
29th Energy Level
580.00 kJ/mol  
99+
762.50 kJ/mol  
20
30th Energy Level
0.00 kJ/mol  
99+
762.00 kJ/mol  
15
Electrochemical Equivalent
3.10 g/amp-hr  
18
0.69 g/amp-hr  
99+
Electron Work Function
4.90 eV  
12
4.70 eV  
15
Other Chemical Properties
-  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
111  
7
26  
99+
Electron Configuration
[Rn] 5f14 6d9 7s2  
[Ar] 3d6 4s2  
Crystal Structure
Body Centered Cubic (BCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
111  
7
26  
99+
Number of Neutrons
161  
4
30  
99+
Number of Electrons
111  
7
26  
99+
Radius of an Atom
  
  
Atomic Radius
200.00 pm  
7
126.00 pm  
99+
Covalent Radius
126.00 pm  
99+
132.00 pm  
99+
Van der Waals Radius
280.00 pm  
6
200.00 pm  
35
Atomic Weight
281.00 amu  
6
55.85 amu  
99+
Atomic Volume
28.70 cm3/mol  
12
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Darmstadtium
  
Manganese
  
Next Element
Copernicium
  
Cobalt
  
Valence Electron Potential
11.90 (-eV)  
99+
67.00 (-eV)  
20
Lattice Constant
0.00 pm  
99+
286.65 pm  
99+
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.90  
1
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
28.70 g/cm3  
6
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
28.70 g/cm3  
7
6.98 g/cm3  
99+
Tensile Strength
65.00 MPa  
33
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)  
99+
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
26.00 GPa  
36
82.00 GPa  
11
Bulk Modulus
0.00 GPa  
99+
170.00 GPa  
10
Young's Modulus
12.70 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
28.70  
8
7.20  
99+
Magnetic Ordering
-  
Ferromagnetic  
Permeability
0.00 H/m  
12
0.01 H/m  
1
Susceptibility
0.00  
24
200,000.00  
1
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.20 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
0.13 J/(kg K)  
40
0.44 J/(kg K)  
13
Molar Heat Capacity
23.70 J/mol·K  
99+
25.10 J/mol·K  
99+
Thermal Conductivity
0.10 W/m·K  
99+
80.40 W/m·K  
22
Critical Temperature
1,100.00 K  
99+
1,811.00 K  
29
Thermal Expansion
12.60 µm/(m·K)  
40
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
580.00 kJ/mol  
12
351.00 kJ/mol  
33
Enthalpy of Fusion
-  
14.90 kJ/mol  
23
Enthalpy of Atomization
580.00 kJ/mol  
14
414.20 kJ/mol  
24
Standard Molar Entropy
57.00 J/mol.K  
30
27.30 J/mol.K  
99+
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