×

Thorium
Thorium

Californium
Californium



ADD
Compare
X
Thorium
X
Californium

Thorium Californium Comparison

1 Periodic Table
1.1 Symbol
Th
Cf
1.2 Group Number
0NA
Gadolinium Metal
0 17
1.3 Period Number
77
Lithium Metal
2 7
1.4 Block
f block
f block
1.5 Element Family
Actinide
Actinide
1.6 CAS Number
74403267440713
Aluminium Metal
7429905 54386242
1.7 Space Group Name
P63/mmc
P63/mmc
1.8 Space Group Number
194.00194.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • 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.
  • Californium metal is very harmful and highly radioactive.
  • Californium metal is the heaviest metal.
2.2 Sources
Found in Minerals, Mining
Made by Bombarding Curium with Helium Ions
2.3 History
2.3.1 Who Discovered
Jöns Jakob Berzelius
Lawrence Berkeley National Laboratory
2.3.2 Discovery
In 1829
In 1950
2.4 Abundance
2.4.1 Abundance In Universe
3 * 10-4 %NA
Thallium Metal
5E-09 0.11
2.4.3 Abundance In Sun
~0.0004 %~-9999 %
Beryllium Metal
1E-08 0.1
2.4.5 Abundance In Meteorites
0.05 %NA
Gold Metal
1.7E-07 22
2.4.8 Abundance In Earth's Crust
0.66 %NA
Radium Metal
9.9E-12 8.1
2.4.10 Abundance In Oceans
0.00 %NA
Protactinium Metal
2E-23 1.1
2.4.12 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • 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.
  • Californium metal has a very strong neutron emitter. It is used as a metal detector.
  • It also used as an identifier to check Water and oil layers in oil wells.
3.1.1 Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry
Chemical Industry
3.1.2 Medical Uses
Dentistry, Surgical Instruments Manufacturing
NA
3.1.3 Other Uses
Alloys, Jewellery, Sculptures, Statues
Alloys, Nuclear Research
3.2 Biological Properties
3.2.1 Toxicity
Non Toxic
Toxic
3.2.2 Present in Human Body
3.2.4 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium Metal
0 1970
3.2.6 In Bone
0.02 p.p.m.0.00 p.p.m.
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
1,750.00 °C900.00 °C
Francium Metal
27 3410
4.2 Boiling Point
4,790.00 °C1,470.00 °C
Flerovium Metal
147 5660
4.4 Appearance
4.4.1 Physical State
Solid
Solid
4.4.2 Color
Silver
Silver
4.4.3 Luster
NA
NA
4.5 Hardness
4.5.1 Mohs Hardness
3.003.00
Cesium Metal
0.2 8.5
5.1.1 Brinell Hardness
390.00 MPaNA
Cesium Metal
0.14 3490
5.4.2 Vickers Hardness
295.00 MPaNA
Palladium Metal
121 3430
5.5 Speed of Sound
2,490.00 m/sNA
Thallium Metal
818 16200
5.6 Optical Properties
5.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
5.6.2 Reflectivity
NANA
Molybdenum Metal
58 97
5.7 Allotropes
5.7.1 α Allotropes
Not Available
Not Available
5.8.2 β Allotropes
Not Available
Not Available
5.8.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Th
Cf
6.2 Isotopes
6.2.1 Known Isotopes
2820
Tennessine Metal
0 38
6.3 Electronegativity
6.3.1 Pauling Electronegativity
1.301.30
Francium Metal
0.7 2.54
6.3.3 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
6.4.1 Allred Rochow Electronegativity
1.111.20
Cesium Metal
0.86 1.82
6.4.2 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
6.5.1 Allen Electronegativity
NANA
Cesium Metal
0.659 2.7
6.8 Electropositivity
6.8.1 Pauling Electropositivity
2.702.70
Gold Metal
1.46 3.3
6.10 Ionization Energies
6.10.1 1st Energy Level
587.00 kJ/mol608.00 kJ/mol
Cesium Metal
375.7 26130
6.10.2 2nd Energy Level
1,110.00 kJ/mol1,206.00 kJ/mol
Ruthenium Metal
710.2162 28750
7.1.2 3rd Energy Level
1,978.00 kJ/mol2,267.00 kJ/mol
Osmium Metal
1600 34230
7.1.3 4th Energy Level
2,780.00 kJ/mol3,599.00 kJ/mol
Tin
2780 37066
7.1.5 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
7.1.6 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
7.2.1 7th Energy level
NANA
Bohrium Metal
7226.8 114300
7.3.1 8th Energy Level
NANA
Hassium Metal
8857.4 125300
7.4.2 9th Energy Level
NANA
Yttrium Metal
14110 134700
7.4.4 10th Energy Level
NANA
Strontium Metal
17100 144300
7.5.2 11th Energy Level
NANA
Yttrium Metal
19900 169988
7.5.4 12th Energy Level
NANA
Molybdenum Metal
22219 189368
7.5.5 13th Energy Level
NANA
Molybdenum Metal
26930 76015
1.1.2 14th Energy Level
NANA
Molybdenum Metal
29196 86450
1.2.1 15th Energy Level
NANA
Manganese Metal
41987 97510
1.3.1 16th Energy Level
NANA
Iron Metal
47206 109480
2.2.1 17th Energy Level
NANA
Cobalt Metal
52737 122200
2.3.5 18th Energy Level
NANA
Nickel Metal
58570 134810
2.4.3 19th Energy Level
NANA
Copper Metal
64702 148700
2.5.3 20th Energy Level
NANA
Molybdenum Metal
80400 171200
2.5.5 21st Energy Level
NANA
Molybdenum Metal
87000 179100
2.5.6 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
2.7.1 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
2.7.3 24th Energy Level
NANA
Molybdenum Metal
104400 195200
2.7.4 25th Energy Level
NANA
Molybdenum Metal
121900 121900
2.7.5 26th Energy Level
NANA
Molybdenum Metal
127700 127700
3.1.1 27th Energy Level
NANA
Molybdenum Metal
133800 133800
3.1.2 28th Energy Level
NANA
Molybdenum Metal
139800 139800
3.2.1 29th Energy Level
NANA
Molybdenum Metal
148100 148100
3.3.1 30th Energy Level
NANA
Molybdenum Metal
154500 154500
3.4 Electrochemical Equivalent
2.16 g/amp-hr3.12 g/amp-hr
Beryllium Metal
0.16812 8.3209
3.6 Electron Work Function
3.41 eVNA
Cesium Metal
2.14 5.65
3.8 Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity
Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility
4 Atomic
4.1 Atomic Number
9098
Lithium Metal
3 117
4.3 Electron Configuration
[Rn] 6d2 7s2
[Rn] 5f10 7s2
4.4 Crystal Structure
Face Centered Cubic (FCC)
Double Hexagonal Close Packed (DHCP)
4.4.1 Crystal Lattice
4.5 Atom
4.5.1 Number of Protons
9098
Lithium Metal
3 117
4.5.2 Number of Neutrons
142153
Lithium Metal
4 184
4.5.4 Number of Electrons
9098
Lithium Metal
3 117
4.6 Radius of an Atom
4.6.1 Atomic Radius
179.80 pm186.00 pm
Beryllium Metal
112 265
4.7.1 Covalent Radius
206.00 pmNA
Beryllium Metal
96 260
4.7.2 Van der Waals Radius
237.00 pmNA
Zinc Metal
139 348
4.8 Atomic Weight
232.04 amu251.00 amu
Lithium Metal
6.94 294
4.9 Atomic Volume
19.90 cm3/molNA
Manganese Metal
1.39 71.07
4.10 Adjacent Atomic Numbers
4.10.1 Previous Element
4.10.2 Next Element
4.11 Valence Electron Potential
59.30 (-eV)44.50 (-eV)
Francium Metal
8 392.42
4.12 Lattice Constant
508.42 pm338.00 pm
Beryllium Metal
228.58 891.25
4.13 Lattice Angles
π/2, π/2, π/2
π/2, π/2, 2 π/3
4.14 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
5 Mechanical
5.1 Density
5.1.1 Density At Room Temperature
11.72 g/cm315.10 g/cm3
Lithium Metal
0.534 40.7
5.1.2 Density When Liquid (at m.p.)
NANA
Lithium Metal
0.512 20
5.2 Tensile Strength
NANA
Indium Metal
2.5 11000
5.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
5.4 Vapor Pressure
5.4.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
5.4.2 Vapor Pressure at 2000 K
0.00 (Pa)NA
Tungsten Metal
2.62E-10 774
5.5 Elasticity properties
5.5.1 Shear Modulus
31.00 GPaNA
Potassium Metal
1.3 222
5.5.2 Bulk Modulus
54.00 GPaNA
Cesium Metal
1.6 462
5.5.3 Young's Modulus
79.00 GPaNA
Cesium Metal
1.7 528
5.6 Poisson Ratio
0.27NA
Beryllium Metal
0.032 0.47
5.7 Other Mechanical Properties
Ductile
Malleable, Sectile
6 Magnetic
6.1 Magnetic Characteristics
6.1.1 Specific Gravity
11.7015.10
Lithium Metal
0.53 4500
6.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
6.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
6.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
6.2 Electrical Properties
6.2.1 Electrical Property
Superconductor
Unknown
6.2.2 Resistivity
157.00 nΩ·mNA
Thallium Metal
0.18 961
6.2.3 Electrical Conductivity
0.07 106/cm ΩNA
Plutonium Metal
0.00666 0.63
6.2.4 Electron Affinity
NANA
Mercury Metal
0 222.8
7 Thermal
7.1 Specific Heat
0.12 J/(kg K)NA
Americium Metal
0.11 3.6
7.2 Molar Heat Capacity
26.23 J/mol·KNA
Beryllium Metal
16.443 62.7
7.3 Thermal Conductivity
54.00 W/m·KNA
Neptunium Metal
6.3 429
7.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
7.5 Thermal Expansion
11.00 µm/(m·K)NA
Tungsten Metal
4.5 97
7.6 Enthalpy
7.6.1 Enthalpy of Vaporization
429.00 kJ/molNA
Zinc Metal
7.32 799.1
7.6.2 Enthalpy of Fusion
15.48 kJ/molNA
Cesium Metal
2.1 35.23
7.6.3 Enthalpy of Atomization
468.60 kJ/molNA
Mercury Metal
61.5 837
7.7 Standard Molar Entropy
27.30 J/mol.KNA
Beryllium Metal
9.5 198.1