1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.5 Block
1.6 Element Family
1.7 CAS Number
74403487440326
7429905
54386242
1.8 Space Group Name
1.9 Space Group Number
2 Facts
2.1 Interesting Facts
Not Available
- Thorium metal is used as an alternate option over Uranium for nuclear fuel.
- Thorium metals appearance (silvery white, soft) is somewhat similar to Lead metal.
2.2 Sources
Obtained by Treating Radium with Neutrons, Ores of metals
Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
Friedrich Oskar Giesel
Jöns Jakob Berzelius
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
2.6.2 Abundance In Sun
~-9999 %~0.0004 %
1E-08
0.1
2.6.4 Abundance In Meteorites
2.6.6 Abundance In Earth's Crust
2.6.8 Abundance In Oceans
2.6.9 Abundance In Humans
3 Uses
3.1 Uses & Benefits
- Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
- Thorium metal is used as an allying agent for Magnesium, It imparts greater strength and resistance to temperature.
-
compound of this metal Thorium oxide is used as an industrial catalyst.
3.1.1 Industrial Uses
NA
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
Dentistry, Surgical Instruments Manufacturing
3.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys, Jewellery, Sculptures, Statues
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-30.00 Blood/mg dm-3
0
1970
3.2.6 In Bone
0.00 p.p.m.0.02 p.p.m.
0
170000
4 Physical
4.1 Melting Point
1,227.00 °C1,750.00 °C
27
3410
4.2 Boiling Point
3,200.00 °C4,790.00 °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
4.6.3 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
5.3.3 Sanderson Electronegativity
5.3.5 Allred Rochow Electronegativity
5.3.7 Mulliken-Jaffe Electronegativity
5.3.9 Allen Electronegativity
5.4 Electropositivity
5.4.1 Pauling Electropositivity
5.5 Ionization Energies
5.5.1 1st Energy Level
499.00 kJ/mol587.00 kJ/mol
375.7
26130
5.5.3 2nd Energy Level
1,170.00 kJ/mol1,110.00 kJ/mol
710.2162
28750
5.5.6 3rd Energy Level
1,900.00 kJ/mol1,978.00 kJ/mol
1600
34230
5.7.1 4th Energy Level
4,700.00 kJ/mol2,780.00 kJ/mol
2780
37066
6.1.1 5th Energy Level
6.1.2 6th Energy Level
6.4.2 7th Energy level
6.4.3 8th Energy Level
6.4.5 9th Energy Level
6.4.6 10th Energy Level
6.4.8 11th Energy Level
6.5.2 12th Energy Level
6.5.4 13th Energy Level
6.6.1 14th Energy Level
6.6.2 15th Energy Level
6.7.1 16th Energy Level
6.7.2 17th Energy Level
6.9.1 18th Energy Level
6.9.2 19th Energy Level
6.10.1 20th Energy Level
6.10.2 21st Energy Level
6.10.3 22nd Energy Level
6.12.1 23rd Energy Level
6.12.2 24th Energy Level
7.1.2 25th Energy Level
7.1.3 26th Energy Level
7.1.4 27th Energy Level
7.1.6 28th Energy Level
7.1.7 29th Energy Level
7.1.8 30th Energy Level
7.3 Electrochemical Equivalent
2.82 g/amp-hr2.16 g/amp-hr
0.16812
8.3209
7.4 Electron Work Function
7.6 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
8 Atomic
8.1 Atomic Number
8.3 Electron Configuration
[Rn] 6d1 7s2
[Rn] 6d2 7s2
8.4 Crystal Structure
Face Centered Cubic (FCC)
Face Centered Cubic (FCC)
8.4.1 Crystal Lattice
8.5 Atom
8.5.1 Number of Protons
8.6.2 Number of Neutrons
8.6.4 Number of Electrons
8.7 Radius of an Atom
8.7.1 Atomic Radius
195.00 pm179.80 pm
112
265
8.7.2 Covalent Radius
8.8.1 Van der Waals Radius
9.2 Atomic Weight
227.00 amu232.04 amu
6.94
294
9.3 Atomic Volume
22.54 cm3/mol19.90 cm3/mol
1.39
71.07
9.5 Adjacent Atomic Numbers
9.5.1 Previous Element
9.5.2 Next Element
9.6 Valence Electron Potential
38.60 (-eV)59.30 (-eV)
8
392.42
9.7 Lattice Constant
567.00 pm508.42 pm
228.58
891.25
10.2 Lattice Angles
π/2, π/2, π/2
π/2, π/2, π/2
10.3 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
10.00 g/cm311.72 g/cm3
0.534
40.7
11.2.1 Density When Liquid (at m.p.)
11.4 Tensile Strength
11.6 Viscosity
11.8 Vapor Pressure
11.8.1 Vapor Pressure at 1000 K
11.9.2 Vapor Pressure at 2000 K
11.10 Elasticity properties
11.10.1 Shear Modulus
11.10.3 Bulk Modulus
11.10.5 Young's Modulus
11.12 Poisson Ratio
11.13 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
12.2.3 Electrical Conductivity
NA0.07 106/cm Ω
0.00666
0.63
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
0.12 J/(kg K)0.12 J/(kg K)
0.11
3.6
13.2 Molar Heat Capacity
27.20 J/mol·K26.23 J/mol·K
16.443
62.7
13.3 Thermal Conductivity
12.00 W/m·K54.00 W/m·K
6.3
429
13.4 Critical Temperature
13.5 Thermal Expansion
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
NA429.00 kJ/mol
7.32
799.1
13.6.2 Enthalpy of Fusion
13.6.3 Enthalpy of Atomization
301.00 kJ/mol468.60 kJ/mol
61.5
837
13.7 Standard Molar Entropy
56.50 J/mol.K27.30 J/mol.K
9.5
198.1