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Lawrencium
Lawrencium

Actinium
Actinium



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Lawrencium
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Lawrencium vs Actinium

1 Periodic Table
1.1 Symbol
Lr
Ac
1.2 Group Number
NANA
Gadolinium
0 17
1.3 Period Number
77
Lithium
2 7
1.5 Block
d block
f block
1.6 Element Family
Actinide
Actinide
1.7 CAS Number
225371957440348
Aluminium
7429905 54386242
1.8 Space Group Name
Not Available
Fm_ 3m
1.9 Space Group Number
NA225.00
Plutonium
11 229
2 Facts
2.1 Interesting Facts
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
Not Available
2.2 Sources
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining
Obtained by Treating Radium with Neutrons, Ores of metals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research
Friedrich Oskar Giesel
2.3.2 Discovery
In 1961–1971
In 1902
2.4 Abundance
2.4.1 Abundance In Universe
NANA
Thallium
5E-09 0.11
2.5.1 Abundance In Sun
~-9999 %~-9999 %
Beryllium
1E-08 0.1
2.6.1 Abundance In Meteorites
NANA
Gold
1.7E-07 22
2.6.2 Abundance In Earth's Crust
NANA
Radium
9.9E-12 8.1
2.8.1 Abundance In Oceans
NANA
Protactinium
2E-23 1.1
2.9.1 Abundance In Humans
NANA
Radium
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  • Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
3.1.1 Industrial Uses
NA
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
NA
Alloys, Nuclear Research, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Unknown
Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium
0 1970
4.1.2 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium
0 170000
5 Physical
5.1 Melting Point
1,627.00 °C1,227.00 °C
Francium
27 3410
5.3 Boiling Point
NA3,200.00 °C
Flerovium
147 5660
5.5 Appearance
5.5.1 Physical State
Solid
Solid
5.5.2 Color
Silver
Silvery White
5.5.3 Luster
Unknown Luster
NA
5.7 Hardness
5.7.1 Mohs Hardness
NANA
Cesium
0.2 8.5
5.7.3 Brinell Hardness
NANA
Cesium
0.14 3490
5.8.2 Vickers Hardness
NANA
Palladium
121 3430
5.9 Speed of Sound
NANA
Thallium
818 16200
5.10 Optical Properties
5.10.1 Refractive Index
NANA
Mercury
1.000933 1.7229
5.10.2 Reflectivity
NANA
Molybdenum
58 97
5.12 Allotropes
5.12.1 α Allotropes
Not Available
Not Available
5.12.2 β Allotropes
Not Available
Not Available
5.12.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Lr
Ac
6.2 Isotopes
6.2.1 Known Isotopes
1029
Tennessine
0 38
7.2 Electronegativity
7.2.1 Pauling Electronegativity
NA1.10
Francium
0.7 2.54
7.2.4 Sanderson Electronegativity
NANA
Cesium
0.22 2.56
7.2.6 Allred Rochow Electronegativity
NA1.00
Cesium
0.86 1.82
7.3.3 Mulliken-Jaffe Electronegativity
NANA
Cesium
0.62 2.48
7.3.5 Allen Electronegativity
NANA
Cesium
0.659 2.7
7.4 Electropositivity
7.4.1 Pauling Electropositivity
NA2.90
Gold
1.46 3.3
7.5 Ionization Energies
7.5.1 1st Energy Level
470.00 kJ/mol499.00 kJ/mol
Cesium
375.7 26130
8.1.1 2nd Energy Level
1,428.00 kJ/mol1,170.00 kJ/mol
Ruthenium
710.2162 28750
8.2.1 3rd Energy Level
2,228.00 kJ/mol1,900.00 kJ/mol
Osmium
1600 34230
8.3.1 4th Energy Level
4,910.00 kJ/mol4,700.00 kJ/mol
Thorium
2780 37066
8.3.2 5th Energy Level
NANA
Dubnium
4305.2 97510
8.4.1 6th Energy Level
NANA
Seaborgium
5715.8 105800
8.5.1 7th Energy level
NANA
Bohrium
7226.8 114300
8.5.2 8th Energy Level
NANA
Hassium
8857.4 125300
8.6.2 9th Energy Level
NANA
Yttrium
14110 134700
8.6.3 10th Energy Level
NANA
Strontium
17100 144300
8.6.5 11th Energy Level
NANA
Yttrium
19900 169988
8.6.7 12th Energy Level
NANA
Molybdenum
22219 189368
8.6.8 13th Energy Level
NANA
Molybdenum
26930 76015
8.7.1 14th Energy Level
NANA
Molybdenum
29196 86450
8.7.2 15th Energy Level
NANA
Manganese
41987 97510
8.7.3 16th Energy Level
NANA
Iron
47206 109480
8.7.4 17th Energy Level
NANA
Cobalt
52737 122200
8.7.5 18th Energy Level
NANA
Nickel
58570 134810
8.7.6 19th Energy Level
NANA
Copper
64702 148700
8.7.7 20th Energy Level
NANA
Molybdenum
80400 171200
8.7.8 21st Energy Level
NANA
Molybdenum
87000 179100
8.7.9 22nd Energy Level
NANA
Molybdenum
93400 184900
8.7.10 23rd Energy Level
NANA
Molybdenum
98420 198800
8.7.11 24th Energy Level
NANA
Molybdenum
104400 195200
8.7.12 25th Energy Level
NANA
Molybdenum
121900 121900
8.7.13 26th Energy Level
NANA
Molybdenum
127700 127700
8.7.14 27th Energy Level
NANA
Molybdenum
133800 133800
8.7.15 28th Energy Level
NANA
Molybdenum
139800 139800
8.7.16 29th Energy Level
NANA
Molybdenum
148100 148100
8.7.17 30th Energy Level
NANA
Molybdenum
154500 154500
8.8 Electrochemical Equivalent
3.23 g/amp-hr2.82 g/amp-hr
Beryllium
0.16812 8.3209
8.9 Electron Work Function
NANA
Cesium
2.14 5.65
8.10 Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity, Solubility
9 Atomic
9.1 Atomic Number
10389
Lithium
3 117
9.2 Electron Configuration
[Rn] 5f14 7s2 7p1
[Rn] 6d1 7s2
9.3 Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
9.3.1 Crystal Lattice
9.4 Atom
9.4.1 Number of Protons
10389
Lithium
3 117
9.4.2 Number of Neutrons
157138
Lithium
4 184
9.4.3 Number of Electrons
10389
Lithium
3 117
9.5 Radius of an Atom
9.5.1 Atomic Radius
NA195.00 pm
Beryllium
112 265
9.5.2 Covalent Radius
NANA
Beryllium
96 260
9.5.3 Van der Waals Radius
246.00 pmNA
Zinc
139 348
9.6 Atomic Weight
266.00 amu227.00 amu
Lithium
6.94 294
9.7 Atomic Volume
NA22.54 cm3/mol
Manganese
1.39 71.07
9.8 Adjacent Atomic Numbers
9.8.1 Previous Element
9.8.2 Next Element
9.9 Valence Electron Potential
NA38.60 (-eV)
Francium
8 392.42
9.10 Lattice Constant
NA567.00 pm
Beryllium
228.58 891.25
9.11 Lattice Angles
NA
π/2, π/2, π/2
9.12 Lattice C/A Ratio
NANA
Beryllium
1.567 1.886
10 Mechanical
10.1 Density
10.1.1 Density At Room Temperature
NA10.00 g/cm3
Lithium
0.534 40.7
10.1.2 Density When Liquid (at m.p.)
NANA
Lithium
0.512 20
10.2 Tensile Strength
NANA
Indium
2.5 11000
10.3 Viscosity
NANA
Mercury
0.001526 0.001526
10.4 Vapor Pressure
10.4.1 Vapor Pressure at 1000 K
NANA
Cerium
2.47E-11 121
10.4.2 Vapor Pressure at 2000 K
NANA
Tungsten
2.62E-10 774
10.5 Elasticity properties
10.5.1 Shear Modulus
NANA
Potassium
1.3 222
10.5.2 Bulk Modulus
NANA
Cesium
1.6 462
10.5.3 Young's Modulus
NANA
Cesium
1.7 528
10.6 Poisson Ratio
0.32NA
Beryllium
0.032 0.47
10.7 Other Mechanical Properties
Unknown
NA
11 Magnetic
11.1 Magnetic Characteristics
11.1.1 Specific Gravity
NA10.07
Lithium
0.53 4500
11.1.2 Magnetic Ordering
Unknown
Paramagnetic
11.1.3 Permeability
NANA
Bismuth
1.25643E-06 0.0063
11.1.4 Susceptibility
NANA
Bismuth
-0.000166 200000
11.2 Electrical Properties
11.2.1 Electrical Property
Unknown
Unknown
11.2.2 Resistivity
NANA
Thallium
0.18 961
11.2.3 Electrical Conductivity
NANA
Plutonium
0.00666 0.63
11.2.4 Electron Affinity
NANA
Mercury
0 222.8
12 Thermal
12.1 Specific Heat
NA0.12 J/(kg K)
Americium
0.11 3.6
12.2 Molar Heat Capacity
NA27.20 J/mol·K
Beryllium
16.443 62.7
12.3 Thermal Conductivity
NA12.00 W/m·K
Neptunium
6.3 429
12.4 Critical Temperature
NANA
Ytterbium
26.3 3223
12.5 Thermal Expansion
NANA
Tungsten
4.5 97
12.6 Enthalpy
12.6.1 Enthalpy of Vaporization
NANA
Zinc
7.32 799.1
12.6.2 Enthalpy of Fusion
NANA
Cesium
2.1 35.23
12.6.3 Enthalpy of Atomization
NA301.00 kJ/mol
Mercury
61.5 837
12.7 Standard Molar Entropy
NA56.50 J/mol.K
Beryllium
9.5 198.1