Symbol
Fe
Group Number
8
Rank: 10 (Overall)
0
17
👆🏻
Period Number
4
Rank: 4 (Overall)
2
7
👆🏻
Block
d block
Element Family
Transition Metal
CAS Number
7439896
Rank: 88 (Overall)
7429905
54386242
👆🏻
Space Group Name
Im_ 3m
Space Group Number
229.00
Rank: 2 (Overall)
11
276
👆🏻
Interesting Facts
- 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
Earth's crust, Found in Minerals
History
Who Discovered
-
Discovery
Before 5000 BC
Abundance
Abundance In Universe
0.11 %
Rank: 1 (Overall)
0
0.11
👆🏻
Abundance In Sun
0.10 %
Rank: 1 (Overall)
0
0.1
👆🏻
Abundance In Meteorites
22.00 %
Rank: 1 (Overall)
0
22
👆🏻
Abundance In Earth's Crust
6.30 %
Rank: 2 (Overall)
1E-37
8.1
👆🏻
Abundance In Oceans
0.00 %
Rank: 12 (Overall)
0
1.1
👆🏻
Abundance In Humans
0.01 %
Rank: 6 (Overall)
0
1.4
👆🏻
Uses & Benefits
- 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
✔
✘
60% - Transition Metals Metals have it !
In Blood
447.00 Blood/mg dm-3
Rank: 3 (Overall)
0
1970
👆🏻
In Bone
380.00 p.p.m.
Rank: 5 (Overall)
0
170000
👆🏻
Melting Point
1,535.00 °C
Rank: 25 (Overall)
-38.83
3410
👆🏻
Boiling Point
2,750.00 °C
Rank: 39 (Overall)
0
5660
👆🏻
Appearance
Physical State
Solid
Color
Gray
Luster
Metallic
Hardness
Mohs Hardness
4.00
Rank: 11 (Overall)
0.2
8.5
👆🏻
Brinell Hardness
200.00 MPa
Rank: 50 (Overall)
0.14
3490
👆🏻
Vickers Hardness
608.00 MPa
Rank: 27 (Overall)
0
3920
👆🏻
Speed of Sound
5,120.00 m/s
Rank: 12 (Overall)
818
16200
👆🏻
Optical Properties
Refractive Index
2.60
Rank: 4 (Overall)
0.155
3.41
👆🏻
Reflectivity
65.00 %
Rank: 18 (Overall)
5
97
👆🏻
Allotropes
✔
✘
6% - Transition Metals Metals have it !
α Allotropes
Ferrite (alpha Iron)
β Allotropes
beta Iron
γ Allotropes
gamma Iron
Chemical Formula
Fe
Isotopes
Known Isotopes
26
Rank: 13 (Overall)
0
38
👆🏻
Electronegativity
Pauling Electronegativity
1.83
Rank: 15 (Overall)
0
2.6
👆🏻
Sanderson Electronegativity
2.20
Rank: 8 (Overall)
0.22
2.56
👆🏻
Allred Rochow Electronegativity
1.64
Rank: 9 (Overall)
0.86
1.9
👆🏻
Mulliken-Jaffe Electronegativity
1.83
Rank: 16 (Overall)
0.62
2.48
👆🏻
Allen Electronegativity
1.80
Rank: 15 (Overall)
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2.17
Rank: 41 (Overall)
1.46
3.3
👆🏻
Ionization Energies
1st Energy Level
762.50 kJ/mol
Rank: 17 (Overall)
375.7
26130
👆🏻
2nd Energy Level
1,561.90 kJ/mol
Rank: 37 (Overall)
392.8
28750
👆🏻
3rd Energy Level
2,957.00 kJ/mol
Rank: 29 (Overall)
392.8
34230
👆🏻
4th Energy Level
5,290.00 kJ/mol
Rank: 25 (Overall)
375.7
37066
👆🏻
5th Energy Level
7,240.00 kJ/mol
Rank: 25 (Overall)
392
97510
👆🏻
6th Energy Level
9,560.00 kJ/mol
Rank: 20 (Overall)
1007
105800
👆🏻
7th Energy level
12,060.00 kJ/mol
Rank: 15 (Overall)
1007
114300
👆🏻
8th Energy Level
14,580.00 kJ/mol
Rank: 14 (Overall)
730
125300
👆🏻
9th Energy Level
22,540.00 kJ/mol
Rank: 5 (Overall)
1007
134700
👆🏻
10th Energy Level
25,290.00 kJ/mol
Rank: 8 (Overall)
392
144300
👆🏻
11th Energy Level
28,000.00 kJ/mol
Rank: 9 (Overall)
392
169988
👆🏻
12th Energy Level
31,920.00 kJ/mol
Rank: 31 (Overall)
0
189368
👆🏻
13th Energy Level
34,830.00 kJ/mol
Rank: 9 (Overall)
1007
76015
👆🏻
14th Energy Level
37,840.00 kJ/mol
Rank: 11 (Overall)
380
86450
👆🏻
15th Energy Level
44,100.00 kJ/mol
Rank: 79 (Overall)
33000
100700
👆🏻
16th Energy Level
47,206.00 kJ/mol
Rank: 64 (Overall)
375.7
109480
👆🏻
17th Energy Level
122,200.00 kJ/mol
Rank: 1 (Overall)
375.7
122200
👆🏻
18th Energy Level
131,000.00 kJ/mol
Rank: 2 (Overall)
0
134810
👆🏻
19th Energy Level
140,500.00 kJ/mol
Rank: 3 (Overall)
375.7
148700
👆🏻
20th Energy Level
152,600.00 kJ/mol
Rank: 5 (Overall)
0
171200
👆🏻
21st Energy Level
163,000.00 kJ/mol
Rank: 5 (Overall)
375.7
179100
👆🏻
22nd Energy Level
173,600.00 kJ/mol
Rank: 4 (Overall)
330
184900
👆🏻
23rd Energy Level
188,100.00 kJ/mol
Rank: 4 (Overall)
357.6
198800
👆🏻
24th Energy Level
195,200.00 kJ/mol
Rank: 1 (Overall)
297.3
195200
👆🏻
25th Energy Level
762.00 kJ/mol
Rank: 15 (Overall)
0
121900
👆🏻
26th Energy Level
762.50 kJ/mol
Rank: 15 (Overall)
357.6
127700
👆🏻
27th Energy Level
762.50 kJ/mol
Rank: 14 (Overall)
0
133800
👆🏻
28th Energy Level
762.50 kJ/mol
Rank: 20 (Overall)
297.3
139800
👆🏻
29th Energy Level
762.50 kJ/mol
Rank: 20 (Overall)
0
148100
👆🏻
30th Energy Level
762.00 kJ/mol
Rank: 15 (Overall)
0
154500
👆🏻
Electrochemical Equivalent
0.69 g/amp-hr
Rank: 69 (Overall)
0.16812
8.3209
👆🏻
Electron Work Function
4.70 eV
Rank: 15 (Overall)
2.14
6
👆🏻
Other Chemical Properties
Corrosion, Ionization, Solubility
Atomic Number
26
Rank: 80 (Overall)
3
117
👆🏻
Electron Configuration
[Ar] 3d6 4s2
Crystal Structure
Body Centered Cubic (BCC)
Crystal Lattice
Atom
Number of Protons
26
Rank: 79 (Overall)
3
117
👆🏻
Number of Neutrons
30
Rank: 61 (Overall)
4
285
👆🏻
Number of Electrons
26
Rank: 79 (Overall)
3
117
👆🏻
Radius of an Atom
Atomic Radius
126.00 pm
Rank: 50 (Overall)
0
348
👆🏻
Covalent Radius
132.00 pm
Rank: 50 (Overall)
0
260
👆🏻
Van der Waals Radius
200.00 pm
Rank: 35 (Overall)
0
348
👆🏻
Atomic Weight
55.85 amu
Rank: 74 (Overall)
6.94
294
👆🏻
Atomic Volume
7.10 cm3/mol
Rank: 79 (Overall)
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
67.00 (-eV)
Rank: 20 (Overall)
0
392.42
👆🏻
Lattice Constant
286.65 pm
Rank: 70 (Overall)
0
891.25
👆🏻
Lattice Angles
π/2, π/2, π/2
Lattice C/A Ratio
1.35
Rank: 53 (Overall)
0.423
1.9
👆🏻
Density
Density At Room Temperature
7.87 g/cm3
Rank: 57 (Overall)
0.534
40.7
👆🏻
Density When Liquid (at m.p.)
6.98 g/cm3
Rank: 64 (Overall)
0.512
41
👆🏻
Tensile Strength
11,000.00 MPa
Rank: 1 (Overall)
0.1
11000
👆🏻
Viscosity
0.00
Rank: 19 (Overall)
1.5E-05
0.0035
👆🏻
Vapor Pressure
Vapor Pressure at 1000 K
0.00 (Pa)
Rank: 30 (Overall)
0
121
👆🏻
Vapor Pressure at 2000 K
36.80 (Pa)
Rank: 5 (Overall)
0
774
👆🏻
Elasticity properties
Shear Modulus
82.00 GPa
Rank: 11 (Overall)
1.3
222
👆🏻
Bulk Modulus
170.00 GPa
Rank: 10 (Overall)
0
462
👆🏻
Young's Modulus
211.00 GPa
Rank: 9 (Overall)
0
528
👆🏻
Poisson Ratio
0.29
Rank: 15 (Overall)
0.032
0.47
👆🏻
Other Mechanical Properties
Ductile, Malleable, Weldable
Magnetic Characteristics
Specific Gravity
7.20
Rank: 61 (Overall)
0.53
4500
👆🏻
Magnetic Ordering
Ferromagnetic
Permeability
0.01 H/m
Rank: 1 (Overall)
1.25643E-06
0.0063
👆🏻
Susceptibility
200,000.00
Rank: 1 (Overall)
-0.000166
200000
👆🏻
Electrical Properties
Electrical Property
Conductor
Resistivity
96.10 nΩ·m
Rank: 32 (Overall)
0.1
961
👆🏻
Electrical Conductivity
0.10 106/cm Ω
Rank: 24 (Overall)
0
0.63
👆🏻
Electron Affinity
15.70 kJ/mol
Rank: 40 (Overall)
0
222.8
👆🏻
Specific Heat
0.44 J/(kg K)
Rank: 13 (Overall)
0.1
3.6
👆🏻
Molar Heat Capacity
25.10 J/mol·K
Rank: 52 (Overall)
13.1
62.7
👆🏻
Thermal Conductivity
80.40 W/m·K
Rank: 22 (Overall)
0
429
👆🏻
Critical Temperature
1,811.00 K
Rank: 29 (Overall)
26.3
3695
👆🏻
Thermal Expansion
11.80 µm/(m·K)
Rank: 44 (Overall)
4.5
97
👆🏻
Enthalpy
Enthalpy of Vaporization
351.00 kJ/mol
Rank: 33 (Overall)
7.32
799.1
👆🏻
Enthalpy of Fusion
14.90 kJ/mol
Rank: 23 (Overall)
2.1
35.23
👆🏻
Enthalpy of Atomization
414.20 kJ/mol
Rank: 24 (Overall)
61.5
837
👆🏻
Standard Molar Entropy
27.30 J/mol.K
Rank: 73 (Overall)
9.5
198.1
👆🏻