1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
1.6 CAS Number
74401337440393
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
2 Facts
2.1 Interesting Facts
- Protactinium metal has 29 isotopes.
- Isotopes of Protactinium-231 used in nuclear weapon.
- Barium oxidizes very easily in the air.
- All toxic compounds of Barium can easily dissolve in water.
- Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
2.2 Sources
Found in Uranium Ores, Mining, Ores of metals
Earth's crust, Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
William Crookes
Carl Wilhelm Scheele
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.4.3 Abundance In Sun
~-9999 %~0.000001 %
1E-08
0.1
2.4.5 Abundance In Meteorites
2.4.7 Abundance In Earth's Crust
2.4.9 Abundance In Oceans
2.4.11 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Currently known uses of Protactinium metal are limited to research purpose only.
- It is sued in chemical paint manufacturing and glass manufacturing.
-
Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
3.1.1 Industrial Uses
NA
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.07 Blood/mg dm-3
0
1970
3.2.5 In Bone
0.00 p.p.m.70.00 p.p.m.
0
170000
4 Physical
4.1 Melting Point
1,568.00 °C725.00 °C
27
3410
4.2 Boiling Point
4,027.00 °C1,140.00 °C
147
5660
4.3 Appearance
4.3.1 Physical State
4.3.2 Color
4.3.3 Luster
4.4 Hardness
4.4.1 Mohs Hardness
4.4.3 Brinell Hardness
4.4.5 Vickers Hardness
4.5 Speed of Sound
4.6 Optical Properties
4.6.1 Refractive Index
4.6.2 Reflectivity
4.7 Allotropes
4.7.1 α Allotropes
Not Available
Not Available
4.7.2 β Allotropes
Not Available
Not Available
4.7.3 γ Allotropes
Not Available
Not Available
5 Chemical
5.1 Chemical Formula
5.2 Isotopes
5.2.1 Known Isotopes
5.3 Electronegativity
5.3.1 Pauling Electronegativity
5.3.4 Sanderson Electronegativity
5.3.6 Allred Rochow Electronegativity
5.3.8 Mulliken-Jaffe Electronegativity
5.3.11 Allen Electronegativity
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 Ionization Energies
5.5.1 1st Energy Level
568.00 kJ/mol502.90 kJ/mol
375.7
26130
5.5.3 2nd Energy Level
1,128.00 kJ/mol965.20 kJ/mol
710.2162
28750
5.5.5 3rd Energy Level
1,814.00 kJ/mol3,600.00 kJ/mol
1600
34230
5.5.7 4th Energy Level
2,991.00 kJ/molNA
2780
37066
5.6.1 5th Energy Level
5.7.1 6th Energy Level
6.1.1 7th Energy level
6.1.2 8th Energy Level
6.4.2 9th Energy Level
6.4.3 10th Energy Level
6.4.5 11th Energy Level
6.4.7 12th Energy Level
6.5.2 13th Energy Level
6.5.4 14th Energy Level
6.5.6 15th Energy Level
6.6.1 16th Energy Level
6.7.1 17th Energy Level
6.7.2 18th Energy Level
6.9.1 19th Energy Level
6.10.1 20th Energy Level
6.10.2 21st Energy Level
6.12.1 22nd Energy Level
7.1.2 23rd Energy Level
7.1.3 24th Energy Level
7.1.5 25th Energy Level
7.1.6 26th Energy Level
7.2.1 27th Energy Level
7.3.1 28th Energy Level
7.4.2 29th Energy Level
7.4.3 30th Energy Level
7.5 Electrochemical Equivalent
1.72 g/amp-hr2.56 g/amp-hr
0.16812
8.3209
7.7 Electron Work Function
7.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity, Solubility
8 Atomic
8.1 Atomic Number
8.2 Electron Configuration
[Rn] 5f2 6d1 7s2
[Xe] 6s2
8.3 Crystal Structure
Tetragonal (TETR)
Body Centered Cubic (BCC)
8.3.1 Crystal Lattice
8.4 Atom
8.4.1 Number of Protons
8.5.1 Number of Neutrons
9.1.2 Number of Electrons
9.2 Radius of an Atom
9.2.1 Atomic Radius
163.00 pm222.00 pm
112
265
9.2.3 Covalent Radius
200.00 pm215.00 pm
96
260
9.3.3 Van der Waals Radius
243.00 pm268.00 pm
139
348
9.4 Atomic Weight
231.04 amu137.33 amu
6.94
294
9.5 Atomic Volume
15.00 cm3/mol39.24 cm3/mol
1.39
71.07
9.6 Adjacent Atomic Numbers
9.6.1 Previous Element
9.6.2 Next Element
9.7 Valence Electron Potential
92.00 (-eV)21.30 (-eV)
8
392.42
10.2 Lattice Constant
392.50 pm502.80 pm
228.58
891.25
10.4 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
10.5 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
15.37 g/cm33.51 g/cm3
0.534
40.7
11.2.1 Density When Liquid (at m.p.)
11.4 Tensile Strength
11.5 Viscosity
11.7 Vapor Pressure
11.7.1 Vapor Pressure at 1000 K
11.7.3 Vapor Pressure at 2000 K
11.8 Elasticity properties
11.8.1 Shear Modulus
11.8.3 Bulk Modulus
11.9.1 Young's Modulus
11.10 Poisson Ratio
11.11 Other Mechanical Properties
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
12.1.3 Permeability
12.1.4 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
177.00 nΩ·m332.00 nΩ·m
0.18
961
12.2.3 Electrical Conductivity
0.05 106/cm Ω0.03 106/cm Ω
0.00666
0.63
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
0.12 J/(kg K)0.20 J/(kg K)
0.11
3.6
13.2 Molar Heat Capacity
NA28.07 J/mol·K
16.443
62.7
13.3 Thermal Conductivity
47.00 W/m·K18.40 W/m·K
6.3
429
13.4 Critical Temperature
13.5 Thermal Expansion
9.90 µm/(m·K)20.60 µm/(m·K)
4.5
97
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
NA140.00 kJ/mol
7.32
799.1
13.6.2 Enthalpy of Fusion
12.34 kJ/mol7.66 kJ/mol
2.1
35.23
13.6.3 Enthalpy of Atomization
13.7 Standard Molar Entropy
198.10 J/mol.K62.50 J/mol.K
9.5
198.1