1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Lanthanide
Transition Metal
1.6 CAS Number
743991054037579
7429905
54386242
1.9 Space Group Name
1.10 Space Group Number
2 Facts
2.1 Interesting Facts
- Lanthanum metal is highly malleable, ductile and sectile.
- If exposed to air Lanthanum metal oxidizes rapidly.
- Hassium metals rate of decay is very high.
- Hassium metals 1st sample was synthesized through a nuclear reaction.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Synthetically Produced
2.3 History
2.3.1 Who Discovered
Carl Gustaf Mosander
Gesellschaft für Schwerionenforschung
2.3.2 Discovery
2.4 Abundance
2.4.1 Abundance In Universe
4.1.2 Abundance In Sun
~0.0000002 %~-9999 %
1E-08
0.1
4.2.3 Abundance In Meteorites
5.1.1 Abundance In Earth's Crust
5.1.6 Abundance In Oceans
5.2.1 Abundance In Humans
6 Uses
6.1 Uses & Benefits
- It has no commercial uses, but its alloys are in high demand. Lanthanum and Nickel alloy is used for the hydrogen gas storage.
- The best-known use for mischmetal alloy of Lanthanum is; as a ‘flints’ for cigarette lighters.
- Currently known uses of Hassium metal are limited to research purpose only.
6.1.1 Industrial Uses
Electrical Industry, Electronic Industry
NA
6.1.2 Medical Uses
6.1.3 Other Uses
Alloys, Mirror Manufacturing
Research Purposes
6.2 Biological Properties
6.2.1 Toxicity
6.2.2 Present in Human Body
6.2.3 In Blood
NA0.00 Blood/mg dm-3
0
1970
6.2.5 In Bone
0.08 p.p.m.0.00 p.p.m.
0
170000
7 Physical
7.1 Melting Point
7.3 Boiling Point
8.2 Appearance
8.2.1 Physical State
8.2.2 Color
8.2.3 Luster
8.3 Hardness
8.3.1 Mohs Hardness
8.5.2 Brinell Hardness
8.8.3 Vickers Hardness
9.3 Speed of Sound
9.6 Optical Properties
9.6.1 Refractive Index
10.1.1 Reflectivity
11.3 Allotropes
11.3.1 α Allotropes
Not Available
Not Available
11.3.2 β Allotropes
Not Available
Not Available
11.3.3 γ Allotropes
Not Available
Not Available
12 Chemical
12.1 Chemical Formula
12.2 Isotopes
12.2.1 Known Isotopes
12.5 Electronegativity
12.5.1 Pauling Electronegativity
12.7.2 Sanderson Electronegativity
12.10.2 Allred Rochow Electronegativity
12.11.2 Mulliken-Jaffe Electronegativity
12.14.2 Allen Electronegativity
12.16 Electropositivity
12.16.1 Pauling Electropositivity
12.17 Ionization Energies
12.17.1 1st Energy Level
538.10 kJ/mol733.30 kJ/mol
375.7
26130
12.17.3 2nd Energy Level
1,067.00 kJ/mol1,756.00 kJ/mol
710.2162
28750
12.18.1 3rd Energy Level
1,850.30 kJ/mol2,827.00 kJ/mol
1600
34230
13.2.1 4th Energy Level
4,819.00 kJ/mol3,637.50 kJ/mol
2780
37066
13.2.6 5th Energy Level
5,940.00 kJ/mol4,940.00 kJ/mol
4305.2
97510
13.2.9 6th Energy Level
NA6,175.10 kJ/mol
5715.8
105800
13.3.4 7th Energy level
NA7,535.50 kJ/mol
7226.8
114300
13.3.7 8th Energy Level
NA8,857.40 kJ/mol
8857.4
125300
13.3.9 9th Energy Level
13.3.11 10th Energy Level
13.3.13 11th Energy Level
14.2.1 12th Energy Level
14.3.1 13th Energy Level
14.3.3 14th Energy Level
14.4.2 15th Energy Level
14.5.1 16th Energy Level
14.5.3 17th Energy Level
14.6.2 18th Energy Level
14.6.4 19th Energy Level
14.6.7 20th Energy Level
14.6.9 21st Energy Level
14.6.12 22nd Energy Level
14.6.13 23rd Energy Level
14.7.2 24th Energy Level
14.7.4 25th Energy Level
14.7.6 26th Energy Level
14.7.8 27th Energy Level
14.7.9 28th Energy Level
14.7.11 29th Energy Level
14.7.13 30th Energy Level
14.8 Electrochemical Equivalent
1.73 g/amp-hrNA
0.16812
8.3209
14.9 Electron Work Function
14.11 Other Chemical Properties
Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes, Radioactivity
15 Atomic
15.1 Atomic Number
15.3 Electron Configuration
[Xe] 5d2 6s2
[Rn] 5f14 6d6 7s2
15.4 Crystal Structure
Double Hexagonal Close Packed (DHCP)
Hexagonal Close Packed (HCP)
15.4.1 Crystal Lattice
15.5 Atom
15.5.1 Number of Protons
15.6.1 Number of Neutrons
16.4.2 Number of Electrons
16.5 Radius of an Atom
16.5.1 Atomic Radius
187.00 pm126.00 pm
112
265
16.5.3 Covalent Radius
207.00 pm134.00 pm
96
260
16.5.5 Van der Waals Radius
16.6 Atomic Weight
138.91 amu269.00 amu
6.94
294
16.8 Atomic Volume
20.73 cm3/molNA
1.39
71.07
16.10 Adjacent Atomic Numbers
16.10.1 Previous Element
16.10.2 Next Element
16.11 Valence Electron Potential
16.12 Lattice Constant
377.20 pmNA
228.58
891.25
16.14 Lattice Angles
16.15 Lattice C/A Ratio
17 Mechanical
17.1 Density
17.1.1 Density At Room Temperature
6.16 g/cm340.70 g/cm3
0.534
40.7
17.3.1 Density When Liquid (at m.p.)
17.5 Tensile Strength
17.8 Viscosity
18.2 Vapor Pressure
18.2.1 Vapor Pressure at 1000 K
18.2.2 Vapor Pressure at 2000 K
18.3 Elasticity properties
18.3.1 Shear Modulus
18.4.1 Bulk Modulus
18.5.1 Young's Modulus
18.7 Poisson Ratio
18.8 Other Mechanical Properties
19 Magnetic
19.1 Magnetic Characteristics
19.1.1 Specific Gravity
19.2.2 Magnetic Ordering
19.2.3 Permeability
19.2.4 Susceptibility
19.3 Electrical Properties
19.3.1 Electrical Property
19.3.2 Resistivity
19.3.4 Electrical Conductivity
0.01 106/cm ΩNA
0.00666
0.63
19.4.1 Electron Affinity
21 Thermal
21.1 Specific Heat
21.2 Molar Heat Capacity
27.11 J/mol·KNA
16.443
62.7
21.3 Thermal Conductivity
21.4 Critical Temperature
21.6 Thermal Expansion
21.7 Enthalpy
21.7.1 Enthalpy of Vaporization
399.60 kJ/molNA
7.32
799.1
21.7.3 Enthalpy of Fusion
21.7.4 Enthalpy of Atomization
21.8 Standard Molar Entropy
56.90 J/mol.KNA
9.5
198.1