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Actinium
Actinium

Lawrencium
Lawrencium



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Actinium
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Lawrencium

Actinium Lawrencium Comparison

1 Periodic Table
1.1 Symbol
Ac
Lr
1.2 Group Number
NANA
Gadolinium Metal
0 17
1.5 Period Number
77
Lithium Metal
2 7
1.3 Block
f block
d block
1.4 Element Family
Actinide
Actinide
1.5 CAS Number
744034822537195
Aluminium Metal
7429905 54386242
1.4 Space Group Name
Fm_ 3m
Not Available
1.5 Space Group Number
225.00NA
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
Not Available
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
2.2 Sources
Obtained by Treating Radium with Neutrons, Ores of metals
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
Friedrich Oskar Giesel
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research
2.3.2 Discovery
In 1902
In 1961–1971
2.4 Abundance
2.4.1 Abundance In Universe
NANA
Thallium Metal
5E-09 0.11
2.9.1 Abundance In Sun
~-9999 %~-9999 %
Beryllium Metal
1E-08 0.1
3.4.2 Abundance In Meteorites
NANA
Gold Metal
1.7E-07 22
4.4.2 Abundance In Earth's Crust
NANA
Radium Metal
9.9E-12 8.1
4.4.5 Abundance In Oceans
NANA
Protactinium Metal
2E-23 1.1
4.4.8 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
5 Uses
5.1 Uses & Benefits
  • Actinium metal has a great source of alpha rays but it is hardly used outside research purpose.
  • Currently known uses of Lawrencium metal are limited to research purpose only.
5.1.1 Industrial Uses
NA
NA
5.1.2 Medical Uses
NA
NA
5.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
NA
5.2 Biological Properties
5.2.1 Toxicity
Toxic
Unknown
5.2.2 Present in Human Body
5.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium Metal
0 1970
5.2.7 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium Metal
0 170000
7 Physical
7.1 Melting Point
1,227.00 °C1,627.00 °C
Francium Metal
27 3410
8.3 Boiling Point
3,200.00 °CNA
Flerovium Metal
147 5660
9.3 Appearance
9.3.1 Physical State
Solid
Solid
9.3.2 Color
Silvery White
Silver
9.3.3 Luster
NA
Unknown Luster
9.4 Hardness
9.4.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
10.1.1 Brinell Hardness
NANA
Cesium Metal
0.14 3490
10.1.3 Vickers Hardness
NANA
Palladium Metal
121 3430
10.3 Speed of Sound
NANA
Thallium Metal
818 16200
10.4 Optical Properties
10.4.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
10.6.2 Reflectivity
NANA
Molybdenum Metal
58 97
10.8 Allotropes
10.8.1 α Allotropes
Not Available
Not Available
10.8.2 β Allotropes
Not Available
Not Available
10.8.3 γ Allotropes
Not Available
Not Available
11 Chemical
11.1 Chemical Formula
Ac
Lr
11.2 Isotopes
11.2.1 Known Isotopes
2910
Tennessine Metal
0 38
11.3 Electronegativity
11.3.1 Pauling Electronegativity
1.10NA
Francium Metal
0.7 2.54
11.4.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
12.2.2 Allred Rochow Electronegativity
1.00NA
Cesium Metal
0.86 1.82
12.2.3 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
12.4.2 Allen Electronegativity
NANA
Cesium Metal
0.659 2.7
12.5 Electropositivity
12.5.1 Pauling Electropositivity
2.90NA
Gold Metal
1.46 3.3
12.7 Ionization Energies
12.7.1 1st Energy Level
499.00 kJ/mol470.00 kJ/mol
Cesium Metal
375.7 26130
12.7.4 2nd Energy Level
1,170.00 kJ/mol1,428.00 kJ/mol
Ruthenium Metal
710.2162 28750
13.1.1 3rd Energy Level
1,900.00 kJ/mol2,228.00 kJ/mol
Osmium Metal
1600 34230
13.2.3 4th Energy Level
4,700.00 kJ/mol4,910.00 kJ/mol
Thorium Metal
2780 37066
13.3.2 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
13.5.2 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
13.5.4 7th Energy level
NANA
Bohrium Metal
7226.8 114300
13.5.7 8th Energy Level
NANA
Hassium Metal
8857.4 125300
13.5.9 9th Energy Level
NANA
Yttrium Metal
14110 134700
13.5.10 10th Energy Level
NANA
Strontium Metal
17100 144300
13.5.13 11th Energy Level
NANA
Yttrium Metal
19900 169988
13.5.16 12th Energy Level
NANA
Molybdenum Metal
22219 189368
13.5.18 13th Energy Level
NANA
Molybdenum Metal
26930 76015
13.5.21 14th Energy Level
NANA
Molybdenum Metal
29196 86450
13.6.2 15th Energy Level
NANA
Manganese Metal
41987 97510
13.7.3 16th Energy Level
NANA
Iron Metal
47206 109480
13.7.5 17th Energy Level
NANA
Cobalt Metal
52737 122200
13.7.8 18th Energy Level
NANA
Nickel Metal
58570 134810
13.7.10 19th Energy Level
NANA
Copper Metal
64702 148700
13.7.13 20th Energy Level
NANA
Molybdenum Metal
80400 171200
13.7.16 21st Energy Level
NANA
Molybdenum Metal
87000 179100
13.7.17 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
13.7.20 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
13.7.22 24th Energy Level
NANA
Molybdenum Metal
104400 195200
13.7.24 25th Energy Level
NANA
Molybdenum Metal
121900 121900
13.7.26 26th Energy Level
NANA
Molybdenum Metal
127700 127700
13.7.29 27th Energy Level
NANA
Molybdenum Metal
133800 133800
13.7.31 28th Energy Level
NANA
Molybdenum Metal
139800 139800
13.7.34 29th Energy Level
NANA
Molybdenum Metal
148100 148100
13.7.36 30th Energy Level
NANA
Molybdenum Metal
154500 154500
13.8 Electrochemical Equivalent
2.82 g/amp-hr3.23 g/amp-hr
Beryllium Metal
0.16812 8.3209
13.9 Electron Work Function
NANA
Cesium Metal
2.14 5.65
13.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes
14 Atomic
14.1 Atomic Number
89103
Lithium Metal
3 117
14.2 Electron Configuration
[Rn] 6d1 7s2
[Rn] 5f14 7s2 7p1
14.3 Crystal Structure
Face Centered Cubic (FCC)
Hexagonal Close Packed (HCP)
14.3.2 Crystal Lattice
14.4 Atom
14.4.1 Number of Protons
89103
Lithium Metal
3 117
14.4.4 Number of Neutrons
138157
Lithium Metal
4 184
14.4.8 Number of Electrons
89103
Lithium Metal
3 117
14.5 Radius of an Atom
14.5.1 Atomic Radius
195.00 pmNA
Beryllium Metal
112 265
14.5.4 Covalent Radius
NANA
Beryllium Metal
96 260
14.5.7 Van der Waals Radius
NA246.00 pm
Zinc Metal
139 348
14.7 Atomic Weight
227.00 amu266.00 amu
Lithium Metal
6.94 294
14.9 Atomic Volume
22.54 cm3/molNA
Manganese Metal
1.39 71.07
15.2 Adjacent Atomic Numbers
15.2.1 Previous Element
15.2.2 Next Element
15.3 Valence Electron Potential
38.60 (-eV)NA
Francium Metal
8 392.42
15.4 Lattice Constant
567.00 pmNA
Beryllium Metal
228.58 891.25
15.8 Lattice Angles
π/2, π/2, π/2
NA
15.9 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
10.00 g/cm3NA
Lithium Metal
0.534 40.7
16.2.1 Density When Liquid (at m.p.)
NANA
Lithium Metal
0.512 20
16.5 Tensile Strength
NANA
Indium Metal
2.5 11000
16.6 Viscosity
NANA
Mercury Metal
0.001526 0.001526
17.2 Vapor Pressure
17.2.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
17.2.3 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
17.7 Elasticity properties
17.7.1 Shear Modulus
NANA
Potassium Metal
1.3 222
17.8.2 Bulk Modulus
NANA
Cesium Metal
1.6 462
17.8.4 Young's Modulus
NANA
Cesium Metal
1.7 528
17.11 Poisson Ratio
NA0.32
Beryllium Metal
0.032 0.47
17.13 Other Mechanical Properties
NA
Unknown
18 Magnetic
18.1 Magnetic Characteristics
18.1.1 Specific Gravity
10.07NA
Lithium Metal
0.53 4500
18.2.2 Magnetic Ordering
Paramagnetic
Unknown
18.2.4 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
18.4.1 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
19.2 Electrical Properties
19.2.1 Electrical Property
Unknown
Unknown
19.2.2 Resistivity
NANA
Thallium Metal
0.18 961
19.2.4 Electrical Conductivity
NANA
Plutonium Metal
0.00666 0.63
19.4.1 Electron Affinity
NANA
Mercury Metal
0 222.8
20 Thermal
20.1 Specific Heat
0.12 J/(kg K)NA
Americium Metal
0.11 3.6
20.5 Molar Heat Capacity
27.20 J/mol·KNA
Beryllium Metal
16.443 62.7
21.2 Thermal Conductivity
12.00 W/m·KNA
Neptunium Metal
6.3 429
21.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
21.6 Thermal Expansion
NANA
Tungsten Metal
4.5 97
21.9 Enthalpy
21.9.1 Enthalpy of Vaporization
NANA
Zinc Metal
7.32 799.1
21.10.1 Enthalpy of Fusion
NANA
Cesium Metal
2.1 35.23
22.1.2 Enthalpy of Atomization
301.00 kJ/molNA
Mercury Metal
61.5 837
22.2 Standard Molar Entropy
56.50 J/mol.KNA
Beryllium Metal
9.5 198.1