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Protactinium Iron Comparison

Protactinium
Iron
Iron Protactinium comparison


Periodic Table
Symbol
Pa  
Fe  
Group Number
3  
15
8  
10
Period Number
7  
4  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440133  
99+
7439896  
99+
Space Group Name
I4/mmm  
Im_ 3m  
Space Group Number
139.00  
11
229.00  
2
Facts
Interesting Facts
  • Protactinium metal has 29 isotopes.
  • Isotopes of Protactinium-231 used in nuclear weapon.
  
  • 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 Uranium Ores, Mining, Ores of metals  
Earth's crust, Found in Minerals  
History
  
  
Who Discovered
William Crookes  
-  
Discovery
In 1900  
Before 5000 BC  
Abundance
  
  
Abundance In Universe
0.00 %  
17
0.11 %  
1
Abundance In Sun
0.00 %  
26
0.10 %  
1
Abundance In Meteorites
-  
22.00 %  
1
Abundance In Earth's Crust
0.00 %  
99+
6.30 %  
2
Abundance In Oceans
0.00 %  
99+
0.00 %  
12
Abundance In Humans
0.00 %  
24
0.01 %  
6
Uses
Uses & Benefits
  • Currently known uses of Protactinium 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
Highly 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
1,568.00 °C  
21
1,535.00 °C  
25
Boiling Point
4,027.00 °C  
12
2,750.00 °C  
39
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Gray  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
5.00  
8
4.00  
11
Brinell Hardness
125.00 MPa  
99+
200.00 MPa  
99+
Vickers Hardness
220.00 MPa  
99+
608.00 MPa  
27
Speed of Sound
12,400.00 m/s  
3
5,120.00 m/s  
12
Optical Properties
  
  
Refractive Index
1.60  
33
2.60  
4
Reflectivity
60.00 %  
23
65.00 %  
18
Allotropes
No  
Yes  
α Allotropes
-  
Ferrite (alpha Iron)  
β Allotropes
-  
beta Iron  
γ Allotropes
-  
gamma Iron  
Chemical
Chemical Formula
Pa  
Fe  
Isotopes
  
  
Known Isotopes
27  
12
26  
13
Electronegativity
  
  
Pauling Electronegativity
1.50  
28
1.83  
15
Sanderson Electronegativity
1.50  
18
2.20  
8
Allred Rochow Electronegativity
1.14  
29
1.64  
9
Mulliken-Jaffe Electronegativity
1.50  
26
1.83  
16
Allen Electronegativity
1.50  
32
1.80  
15
Electropositivity
  
  
Pauling Electropositivity
2.50  
27
2.17  
99+
Ionization Energies
  
  
1st Energy Level
568.00 kJ/mol  
99+
762.50 kJ/mol  
17
2nd Energy Level
1,128.00 kJ/mol  
99+
1,561.90 kJ/mol  
37
3rd Energy Level
1,814.00 kJ/mol  
99+
2,957.00 kJ/mol  
29
4th Energy Level
2,991.00 kJ/mol  
99+
5,290.00 kJ/mol  
25
5th Energy Level
5,120.00 kJ/mol  
99+
7,240.00 kJ/mol  
25
6th Energy Level
5,680.00 kJ/mol  
99+
9,560.00 kJ/mol  
20
7th Energy level
5,680.00 kJ/mol  
99+
12,060.00 kJ/mol  
15
8th Energy Level
5,680.00 kJ/mol  
99+
14,580.00 kJ/mol  
14
9th Energy Level
5,120.00 kJ/mol  
99+
22,540.00 kJ/mol  
5
10th Energy Level
5,120.00 kJ/mol  
99+
25,290.00 kJ/mol  
8
11th Energy Level
5,680.00 kJ/mol  
99+
28,000.00 kJ/mol  
9
12th Energy Level
5,680.00 kJ/mol  
99+
31,920.00 kJ/mol  
31
13th Energy Level
5,680.00 kJ/mol  
99+
34,830.00 kJ/mol  
9
14th Energy Level
5,680.00 kJ/mol  
99+
37,840.00 kJ/mol  
11
15th Energy Level
56,800.00 kJ/mol  
99+
44,100.00 kJ/mol  
99+
16th Energy Level
56,800.00 kJ/mol  
99+
47,206.00 kJ/mol  
99+
17th Energy Level
568.50 kJ/mol  
99+
122,200.00 kJ/mol  
1
18th Energy Level
5,680.00 kJ/mol  
99+
131,000.00 kJ/mol  
2
19th Energy Level
568.30 kJ/mol  
99+
140,500.00 kJ/mol  
3
20th Energy Level
568.00 kJ/mol  
99+
152,600.00 kJ/mol  
5
21st Energy Level
568.00 kJ/mol  
99+
163,000.00 kJ/mol  
5
22nd Energy Level
568.00 kJ/mol  
99+
173,600.00 kJ/mol  
4
23rd Energy Level
568.00 kJ/mol  
99+
188,100.00 kJ/mol  
4
24th Energy Level
568.00 kJ/mol  
99+
195,200.00 kJ/mol  
1
25th Energy Level
568.00 kJ/mol  
99+
762.00 kJ/mol  
15
26th Energy Level
568.00 kJ/mol  
99+
762.50 kJ/mol  
15
27th Energy Level
568.00 kJ/mol  
99+
762.50 kJ/mol  
14
28th Energy Level
568.00 kJ/mol  
99+
762.50 kJ/mol  
20
29th Energy Level
568.00 kJ/mol  
99+
762.50 kJ/mol  
20
30th Energy Level
568.00 kJ/mol  
99+
762.00 kJ/mol  
15
Electrochemical Equivalent
1.72 g/amp-hr  
99+
0.69 g/amp-hr  
99+
Electron Work Function
5.89 eV  
3
4.70 eV  
15
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Corrosion, Ionization, Solubility  
Atomic
Atomic Number
91  
27
26  
99+
Electron Configuration
[Rn] 5f2 6d1 7s2  
[Ar] 3d6 4s2  
Crystal Structure
Tetragonal (TETR)  
Body Centered Cubic (BCC)  
Crystal Lattice
TETR-Crystal-Structure-of-Protactinium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
91  
27
26  
99+
Number of Neutrons
122  
22
30  
99+
Number of Electrons
91  
27
26  
99+
Radius of an Atom
  
  
Atomic Radius
163.00 pm  
27
126.00 pm  
99+
Covalent Radius
200.00 pm  
11
132.00 pm  
99+
Van der Waals Radius
243.00 pm  
15
200.00 pm  
35
Atomic Weight
231.04 amu  
24
55.85 amu  
99+
Atomic Volume
15.00 cm3/mol  
99+
7.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Thorium
  
Manganese
  
Next Element
Uranium
  
Cobalt
  
Valence Electron Potential
92.00 (-eV)  
11
67.00 (-eV)  
20
Lattice Constant
392.50 pm  
26
286.65 pm  
99+
Lattice Angles
π/2, π/2, π/2  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
36
1.35  
99+
Mechanical
Density
  
  
Density At Room Temperature
15.37 g/cm3  
20
7.87 g/cm3  
99+
Density When Liquid (at m.p.)
15.37 g/cm3  
21
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)  
32
36.80 (Pa)  
5
Elasticity properties
  
  
Shear Modulus
16.00 GPa  
99+
82.00 GPa  
11
Bulk Modulus
47.00 GPa  
26
170.00 GPa  
10
Young's Modulus
47.00 GPa  
99+
211.00 GPa  
9
Poisson Ratio
0.23  
30
0.29  
15
Other Mechanical Properties
-  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
15.37  
23
7.20  
99+
Magnetic Ordering
Paramagnetic  
Ferromagnetic  
Permeability
0.00 H/m  
10
0.01 H/m  
1
Susceptibility
0.00  
21
200,000.00  
1
Electrical Properties
  
  
Electrical Property
Conductor  
Conductor  
Resistivity
177.00 nΩ·m  
21
96.10 nΩ·m  
32
Electrical Conductivity
0.05 106/cm Ω  
39
0.10 106/cm Ω  
24
Electron Affinity
53.03 kJ/mol  
22
15.70 kJ/mol  
40
Thermal
Specific Heat
0.12 J/(kg K)  
99+
0.44 J/(kg K)  
13
Molar Heat Capacity
27.20 J/mol·K  
24
25.10 J/mol·K  
99+
Thermal Conductivity
47.00 W/m·K  
32
80.40 W/m·K  
22
Critical Temperature
1,841.00 K  
25
1,811.00 K  
29
Thermal Expansion
9.90 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
481.00 kJ/mol  
17
351.00 kJ/mol  
33
Enthalpy of Fusion
12.34 kJ/mol  
34
14.90 kJ/mol  
23
Enthalpy of Atomization
481.90 kJ/mol  
19
414.20 kJ/mol  
24
Standard Molar Entropy
198.10 J/mol.K  
1
27.30 J/mol.K  
99+
Summary >>
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Actinide Series

Actinide Series

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