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Gadolinium vs Iron

Gadolinium
Iron
Iron vs Gadolinium


Periodic Table
Symbol
Gd  
Fe  
Group Number
0  
18
8  
10
Period Number
6  
4  
Block
f block  
d block  
Element Family
Lanthanide  
Transition Metal  
CAS Number
7440542  
33
7439896  
99+
Space Group Name
P63/mmc  
Im_ 3m  
Space Group Number
194.00  
7
229.00  
2
Facts
Interesting Facts
  • Gadolinium is not found free in nature, hence it is not a native metal.
  • Gadolinium metal found in minerals like Monazite and Bastnaesite.
  
  • 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
Found in Minerals, Mining  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
Jean Charles Galissard de Marignac  
-  
Discovery
In 1880  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.11 %  
1
Abundance In Sun
0.00 %  
25
0.10 %  
1
Abundance In Meteorites
0.00 %  
34
22.00 %  
1
Abundance In Earth's Crust
0.00 %  
30
6.30 %  
2
Abundance In Oceans
0.00 %  
38
0.00 %  
12
Abundance In Humans
0.00 %  
24
0.01 %  
6
Uses
Uses & Benefits
  • Its alloys are also used in making Magnets, electronic components and Data storage devices.
  • Compound of Gadolinium metal are used in magnetic resonance imaging (MRI).
  
  • 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, Electrical Industry, Electronic Industry  
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
Alloys  
Alloys, Sculptures, Statues  
Biological Properties
  
  
Toxicity
Non Toxic  
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
1,311.00 °C  
35
1,535.00 °C  
25
Boiling Point
3,233.00 °C  
26
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery White  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
4.50  
10
4.00  
11
Brinell Hardness
700.00 MPa  
17
200.00 MPa  
99+
Vickers Hardness
510.00 MPa  
34
608.00 MPa  
27
Speed of Sound
2,680.00 m/s  
99+
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.97  
16
2.60  
4
Reflectivity
59.00 %  
24
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Gd  
Fe  
Isotopes
  
  
Known Isotopes
26  
13
26  
13
Electronegativity
  
  
Pauling Electronegativity
1.20  
40
1.83  
15
Sanderson Electronegativity
1.20  
32
2.20  
8
Allred Rochow Electronegativity
1.11  
30
1.64  
9
Mulliken-Jaffe Electronegativity
1.20  
39
1.83  
16
Allen Electronegativity
1.20  
99+
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
2.80  
15
2.17  
99+
Ionization Energies
  
  
1st Energy Level
593.40 kJ/mol  
99+
762.50 kJ/mol  
17
2nd Energy Level
1,170.00 kJ/mol  
99+
1,561.90 kJ/mol  
37
3rd Energy Level
1,990.00 kJ/mol  
99+
2,957.00 kJ/mol  
29
4th Energy Level
4,250.00 kJ/mol  
40
5,290.00 kJ/mol  
25
5th Energy Level
5,930.00 kJ/mol  
99+
7,240.00 kJ/mol  
25
6th Energy Level
5,930.00 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
5,930.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
5,930.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
5,930.00 kJ/mol  
99+
22,540.00 kJ/mol  
5
10th Energy Level
5,930.00 kJ/mol  
99+
25,290.00 kJ/mol  
8
11th Energy Level
5,930.00 kJ/mol  
99+
28,000.00 kJ/mol  
9
12th Energy Level
59,300.00 kJ/mol  
17
31,920.00 kJ/mol  
31
13th Energy Level
5,930.00 kJ/mol  
99+
34,830.00 kJ/mol  
9
14th Energy Level
5,930.00 kJ/mol  
36
37,840.00 kJ/mol  
11
15th Energy Level
59,300.00 kJ/mol  
99+
44,100.00 kJ/mol  
99+
16th Energy Level
59,300.00 kJ/mol  
37
47,206.00 kJ/mol  
99+
17th Energy Level
594.10 kJ/mol  
99+
122,200.00 kJ/mol  
1
18th Energy Level
5,930.00 kJ/mol  
99+
131,000.00 kJ/mol  
2
19th Energy Level
593.40 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
594.00 kJ/mol  
99+
152,600.00 kJ/mol  
5
21st Energy Level
593.40 kJ/mol  
99+
163,000.00 kJ/mol  
5
22nd Energy Level
593.00 kJ/mol  
99+
173,600.00 kJ/mol  
4
23rd Energy Level
593.40 kJ/mol  
99+
188,100.00 kJ/mol  
4
24th Energy Level
593.40 kJ/mol  
99+
195,200.00 kJ/mol  
1
25th Energy Level
593.00 kJ/mol  
99+
762.00 kJ/mol  
15
26th Energy Level
593.40 kJ/mol  
99+
762.50 kJ/mol  
15
27th Energy Level
593.40 kJ/mol  
99+
762.50 kJ/mol  
14
28th Energy Level
593.40 kJ/mol  
99+
762.50 kJ/mol  
20
29th Energy Level
593.40 kJ/mol  
99+
762.50 kJ/mol  
20
30th Energy Level
593.40 kJ/mol  
99+
762.00 kJ/mol  
15
Electrochemical Equivalent
1.96 g/amp-hr  
36
0.69 g/amp-hr  
99+
Electron Work Function
3.10 eV  
99+
4.70 eV  
15
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
64  
99+
26  
99+
Electron Configuration
[Xe] 4f7 5d1 6s2  
[Ar] 3d6 4s2  
Crystal Structure
Hexagonal Close Packed (HCP)  
Body Centered Cubic (BCC)  
Crystal Lattice
HCP-Crystal-Structure-of-Gadolinium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
64  
99+
26  
99+
Number of Neutrons
93  
38
30  
99+
Number of Electrons
64  
99+
26  
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
16
126.00 pm  
99+
Covalent Radius
196.00 pm  
14
132.00 pm  
99+
Van der Waals Radius
237.00 pm  
19
200.00 pm  
35
Atomic Weight
47.87 amu  
99+
55.85 amu  
99+
Atomic Volume
19.90 cm3/mol  
32
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Europium
  
Manganese
  
Next Element
Terbium
  
Cobalt
  
Valence Electron Potential
46.10 (-eV)  
35
67.00 (-eV)  
20
Lattice Constant
363.60 pm  
35
286.65 pm  
99+
Lattice Angles
π/2, π/2, 2 π/3  
π/2, π/2, π/2  
Lattice C/A Ratio
1.59  
29
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
7.90 g/cm3  
99+
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
7.40 g/cm3  
99+
6.98 g/cm3  
99+
Tensile Strength
158.00 MPa  
23
11,000.00 MPa  
1
Viscosity
0.00  
23
0.00  
19
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
32
0.00 (Pa)  
30
Vapor Pressure at 2000 K
7.39 (Pa)  
9
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
21.80 GPa  
99+
82.00 GPa  
11
Bulk Modulus
37.90 GPa  
99+
170.00 GPa  
10
Young's Modulus
54.80 GPa  
38
211.00 GPa  
9
Poisson Ratio
0.26  
23
0.29  
15
Other Mechanical Properties
Ductile, Malleable  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
7.90  
99+
7.20  
99+
Magnetic Ordering
Ferromagnetic  
Ferromagnetic  
Permeability
0.00 H/m  
12
0.01 H/m  
1
Susceptibility
0.00  
4
200,000.00  
1
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
1.31 nΩ·m  
99+
96.10 nΩ·m  
32
Electrical Conductivity
0.01 106/cm Ω  
99+
0.10 106/cm Ω  
24
Electron Affinity
50.00 kJ/mol  
26
15.70 kJ/mol  
40
Thermal
Specific Heat
0.23 J/(kg K)  
27
0.44 J/(kg K)  
13
Molar Heat Capacity
37.03 J/mol·K  
3
25.10 J/mol·K  
99+
Thermal Conductivity
10.60 W/m·K  
99+
80.40 W/m·K  
22
Critical Temperature
1,585.00 K  
38
1,811.00 K  
29
Thermal Expansion
9.40 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
359.40 kJ/mol  
30
351.00 kJ/mol  
33
Enthalpy of Fusion
10.05 kJ/mol  
99+
14.90 kJ/mol  
23
Enthalpy of Atomization
352.00 kJ/mol  
36
414.20 kJ/mol  
24
Standard Molar Entropy
68.10 J/mol.K  
16
27.30 J/mol.K  
99+
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