1 Periodic Table
1.1 Symbol
1.2 Group Number
2.3 Period Number
2.4 Block
2.5 Element Family
Transition Metal
Actinide
2.6 CAS Number
74403267440133
7429905
54386242
3.2 Space Group Name
3.3 Space Group Number
4 Facts
4.1 Interesting Facts
- The only metal which burns in Nitrogen is Titanium.
- Titanium is also known as corrosion resistant metal.
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
4.2 Sources
Found in Minerals, Mining
Found in Uranium Ores, Mining, Ores of metals
4.3 History
4.3.1 Who Discovered
W. Gregor & J. Berzelius
William Crookes
4.3.2 Discovery
4.5 Abundance
4.5.1 Abundance In Universe
4.6.3 Abundance In Sun
~0.0004 %~-9999 %
1E-08
0.1
4.6.6 Abundance In Meteorites
4.6.9 Abundance In Earth's Crust
4.7.2 Abundance In Oceans
4.8.2 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Its alloys are used in spacecraft, aircraft and ammunition industry.
- Its pipes are used in distillation plants, submarines, hulls of big ships, etc.
- Currently known uses of Protactinium metal are limited to research purpose only.
5.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
NA
5.1.3 Medical Uses
Dentistry, Surgical Instruments Manufacturing
NA
5.1.4 Other Uses
Alloys, Jewellery, Sculptures, Statues
NA
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.2.3 In Blood
0.05 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
6.2.3 In Bone
7 Physical
7.1 Melting Point
1,660.00 °C1,568.00 °C
27
3410
7.2 Boiling Point
3,287.00 °C4,027.00 °C
147
5660
7.3 Appearance
7.3.1 Physical State
7.3.2 Color
Silvery Gray-White
Silver
7.3.3 Luster
7.4 Hardness
7.4.1 Mohs Hardness
7.4.4 Brinell Hardness
7.4.7 Vickers Hardness
7.7 Speed of Sound
7.9 Optical Properties
7.9.1 Refractive Index
7.10.1 Reflectivity
7.11 Allotropes
7.11.1 α Allotropes
Not Available
Not Available
7.11.2 β Allotropes
Not Available
Not Available
7.11.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
8.2 Isotopes
8.2.1 Known Isotopes
9.2 Electronegativity
9.2.1 Pauling Electronegativity
9.5.3 Sanderson Electronegativity
9.5.5 Allred Rochow Electronegativity
9.5.8 Mulliken-Jaffe Electronegativity
9.6.2 Allen Electronegativity
9.7 Electropositivity
9.7.1 Pauling Electropositivity
9.8 Ionization Energies
9.8.1 1st Energy Level
658.80 kJ/mol568.00 kJ/mol
375.7
26130
9.9.1 2nd Energy Level
1,309.80 kJ/mol1,128.00 kJ/mol
710.2162
28750
9.9.3 3rd Energy Level
2,652.50 kJ/mol1,814.00 kJ/mol
1600
34230
9.10.2 4th Energy Level
4,174.60 kJ/mol2,991.00 kJ/mol
2780
37066
9.12.1 5th Energy Level
9,581.00 kJ/molNA
4305.2
97510
9.13.1 6th Energy Level
11,533.00 kJ/molNA
5715.8
105800
9.13.3 7th Energy level
13,590.00 kJ/molNA
7226.8
114300
9.13.4 8th Energy Level
16,440.00 kJ/molNA
8857.4
125300
9.15.1 9th Energy Level
18,530.00 kJ/molNA
14110
134700
10.1.2 10th Energy Level
20,833.00 kJ/molNA
17100
144300
10.1.4 11th Energy Level
25,575.00 kJ/molNA
19900
169988
10.1.8 12th Energy Level
28,125.00 kJ/molNA
22219
189368
10.1.10 13th Energy Level
76,015.00 kJ/molNA
26930
76015
10.2.1 14th Energy Level
83,280.00 kJ/molNA
29196
86450
10.3.2 15th Energy Level
90,880.00 kJ/molNA
41987
97510
10.4.3 16th Energy Level
100,700.00 kJ/molNA
47206
109480
10.4.7 17th Energy Level
109,100.00 kJ/molNA
52737
122200
10.5.3 18th Energy Level
117,800.00 kJ/molNA
58570
134810
10.5.6 19th Energy Level
129,900.00 kJ/molNA
64702
148700
10.5.8 20th Energy Level
137,530.00 kJ/molNA
80400
171200
10.5.11 21st Energy Level
10.6.1 22nd Energy Level
10.7.1 23rd Energy Level
10.8.1 24th Energy Level
12.1.1 25th Energy Level
12.1.4 26th Energy Level
12.4.2 27th Energy Level
12.4.4 28th Energy Level
12.5.4 29th Energy Level
12.5.5 30th Energy Level
12.6 Electrochemical Equivalent
0.45 g/amp-hr1.72 g/amp-hr
0.16812
8.3209
12.8 Electron Work Function
12.9 Other Chemical Properties
Chemical Stability, Ionization
Ionization, Radioactive Isotopes, Radioactivity
13 Atomic
13.1 Atomic Number
14.2 Electron Configuration
[Ar] 3d2 4s2
[Rn] 5f2 6d1 7s2
14.3 Crystal Structure
Hexagonal Close Packed (HCP)
Tetragonal (TETR)
14.3.1 Crystal Lattice
14.4 Atom
14.4.1 Number of Protons
14.5.1 Number of Neutrons
14.7.1 Number of Electrons
14.10 Radius of an Atom
14.10.1 Atomic Radius
147.00 pm163.00 pm
112
265
14.12.1 Covalent Radius
160.00 pm200.00 pm
96
260
14.14.1 Van der Waals Radius
200.00 pm243.00 pm
139
348
15.2 Atomic Weight
47.87 amu231.04 amu
6.94
294
15.4 Atomic Volume
10.64 cm3/mol15.00 cm3/mol
1.39
71.07
15.7 Adjacent Atomic Numbers
15.7.1 Previous Element
15.7.2 Next Element
15.8 Valence Electron Potential
95.20 (-eV)92.00 (-eV)
8
392.42
15.11 Lattice Constant
295.08 pm392.50 pm
228.58
891.25
15.14 Lattice Angles
π/2, π/2, 2 π/3
π/2, π/2, π/2
15.15 Lattice C/A Ratio
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
4.51 g/cm315.37 g/cm3
0.534
40.7
16.1.4 Density When Liquid (at m.p.)
16.2 Tensile Strength
16.4 Viscosity
16.5 Vapor Pressure
16.5.1 Vapor Pressure at 1000 K
17.1.2 Vapor Pressure at 2000 K
17.2 Elasticity properties
17.2.1 Shear Modulus
17.3.1 Bulk Modulus
17.4.3 Young's Modulus
17.5 Poisson Ratio
17.6 Other Mechanical Properties
18 Magnetic
18.1 Magnetic Characteristics
18.1.1 Specific Gravity
19.1.1 Magnetic Ordering
Paramagnetic
Paramagnetic
19.1.2 Permeability
19.2.1 Susceptibility
19.4 Electrical Properties
19.4.1 Electrical Property
19.4.2 Resistivity
420.00 nΩ·m177.00 nΩ·m
0.18
961
19.5.1 Electrical Conductivity
0.02 106/cm Ω0.05 106/cm Ω
0.00666
0.63
19.6.1 Electron Affinity
20 Thermal
20.1 Specific Heat
0.52 J/(kg K)0.12 J/(kg K)
0.11
3.6
20.2 Molar Heat Capacity
25.06 J/mol·KNA
16.443
62.7
20.3 Thermal Conductivity
21.90 W/m·K47.00 W/m·K
6.3
429
20.4 Critical Temperature
1.4 Thermal Expansion
8.60 µm/(m·K)9.90 µm/(m·K)
4.5
97
1.6 Enthalpy
1.6.1 Enthalpy of Vaporization
429.00 kJ/molNA
7.32
799.1
1.10.1 Enthalpy of Fusion
15.48 kJ/mol12.34 kJ/mol
2.1
35.23
1.11.1 Enthalpy of Atomization
2.5 Standard Molar Entropy
27.30 J/mol.K198.10 J/mol.K
9.5
198.1