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Lawrencium
Lawrencium

Strontium
Strontium



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Lawrencium
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Strontium

Lawrencium Strontium Comparison

1 Periodic Table
1.1 Symbol
Lr
Sr
1.2 Group Number
NA2
Gadolinium Metal
0 17
1.3 Period Number
75
Lithium Metal
2 7
1.4 Block
d block
s block
1.5 Element Family
Actinide
Alkaline Earth
1.6 CAS Number
225371957440246
Aluminium Metal
7429905 54386242
1.7 Space Group Name
Not Available
Fm_ 3m
1.8 Space Group Number
NA225.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
2.2 Sources
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining
Found in Minerals, Mining, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research
William Cruickshank
2.3.2 Discovery
In 1961–1971
In 1787
2.4 Abundance
2.4.1 Abundance In Universe
NA4 * 10-6 %
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~0.000005 %
Beryllium Metal
1E-08 0.1
2.4.3 Abundance In Meteorites
NA0.00 %
Gold Metal
1.7E-07 22
2.4.4 Abundance In Earth's Crust
NA0.04 %
Radium Metal
9.9E-12 8.1
2.4.5 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
2.4.6 Abundance In Humans
NA0.00 %
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  • Strontium metal is used to producing ferrite magnets as well as refining zinc.
  • By-product of nuclear reactors called Strontium-90 is a radioactive isotope; it is absorbed by tissues and destroys bone marrow and cancer growth.
3.1.1 Industrial Uses
NA
Ammunition Industry, Chemical Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
NA
Alloys
3.2 Biological Properties
3.2.1 Toxicity
Unknown
Non Toxic
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.03 Blood/mg dm-3
Plutonium Metal
0 1970
3.2.4 In Bone
0.00 p.p.m.140.00 p.p.m.
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
1,627.00 °C769.00 °C
Francium Metal
27 3410
4.2 Boiling Point
NA1,384.00 °C
Flerovium Metal
147 5660
4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silver
Silvery White
4.3.3 Luster
Unknown Luster
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
NA1.50
Cesium Metal
0.2 8.5
4.4.2 Brinell Hardness
NANA
Cesium Metal
0.14 3490
4.4.3 Vickers Hardness
NANA
Palladium Metal
121 3430
4.5 Speed of Sound
NANA
Thallium Metal
818 16200
4.6 Optical Properties
4.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
4.6.2 Reflectivity
NANA
Molybdenum Metal
58 97
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
Lr
Sr
5.2 Isotopes
5.2.1 Known Isotopes
1027
Tennessine Metal
0 38
5.3 Electronegativity
5.3.1 Pauling Electronegativity
NA0.95
Francium Metal
0.7 2.54
5.3.2 Sanderson Electronegativity
NA0.72
Cesium Metal
0.22 2.56
5.3.3 Allred Rochow Electronegativity
NA0.99
Cesium Metal
0.86 1.82
5.3.4 Mulliken-Jaffe Electronegativity
NA1.00
Cesium Metal
0.62 2.48
5.3.5 Allen Electronegativity
NA0.96
Cesium Metal
0.659 2.7
5.4 Electropositivity
5.4.1 Pauling Electropositivity
NA3.05
Gold Metal
1.46 3.3
5.5 Ionization Energies
5.5.1 1st Energy Level
470.00 kJ/mol549.50 kJ/mol
Cesium Metal
375.7 26130
5.5.2 2nd Energy Level
1,428.00 kJ/mol1,064.20 kJ/mol
Ruthenium Metal
710.2162 28750
5.5.3 3rd Energy Level
2,228.00 kJ/mol4,138.00 kJ/mol
Osmium Metal
1600 34230
5.5.4 4th Energy Level
4,910.00 kJ/mol5,500.00 kJ/mol
Thorium Metal
2780 37066
5.5.5 5th Energy Level
NA6,910.00 kJ/mol
Dubnium Metal
4305.2 97510
5.5.6 6th Energy Level
NA8,760.00 kJ/mol
Seaborgium Metal
5715.8 105800
5.5.7 7th Energy level
NA10,230.00 kJ/mol
Bohrium Metal
7226.8 114300
5.5.8 8th Energy Level
NA11,800.00 kJ/mol
Hassium Metal
8857.4 125300
5.5.9 9th Energy Level
NA15,600.00 kJ/mol
Yttrium Metal
14110 134700
5.5.10 10th Energy Level
NA17,100.00 kJ/mol
Copper
17100 144300
5.5.11 11th Energy Level
NA31,270.00 kJ/mol
Yttrium Metal
19900 169988
5.5.12 12th Energy Level
NANA
Molybdenum Metal
22219 189368
5.5.13 13th Energy Level
NANA
Molybdenum Metal
26930 76015
5.5.14 14th Energy Level
NANA
Molybdenum Metal
29196 86450
5.5.15 15th Energy Level
NANA
Manganese Metal
41987 97510
5.5.16 16th Energy Level
NANA
Iron Metal
47206 109480
5.5.17 17th Energy Level
NANA
Cobalt Metal
52737 122200
5.5.18 18th Energy Level
NANA
Nickel Metal
58570 134810
5.5.19 19th Energy Level
NANA
Copper Metal
64702 148700
5.5.20 20th Energy Level
NANA
Molybdenum Metal
80400 171200
5.5.21 21st Energy Level
NANA
Molybdenum Metal
87000 179100
5.5.22 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
5.5.23 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
5.5.24 24th Energy Level
NANA
Molybdenum Metal
104400 195200
5.5.25 25th Energy Level
NANA
Molybdenum Metal
121900 121900
5.5.26 26th Energy Level
NANA
Molybdenum Metal
127700 127700
1.2.2 27th Energy Level
NANA
Molybdenum Metal
133800 133800
1.2.3 28th Energy Level
NANA
Molybdenum Metal
139800 139800
1.3.2 29th Energy Level
NANA
Molybdenum Metal
148100 148100
1.3.3 30th Energy Level
NANA
Molybdenum Metal
154500 154500
1.4 Electrochemical Equivalent
3.23 g/amp-hr1.64 g/amp-hr
Beryllium Metal
0.16812 8.3209
1.5 Electron Work Function
NA2.59 eV
Cesium Metal
2.14 5.65
1.6 Other Chemical Properties
Ionization, Radioactive Isotopes
Ionization, Radioactive Isotopes, Radioactivity, Solubility
2 Atomic
2.1 Atomic Number
10338
Lithium Metal
3 117
2.2 Electron Configuration
[Rn] 5f14 7s2 7p1
[Kr] 5s2
2.3 Crystal Structure
Hexagonal Close Packed (HCP)
Face Centered Cubic (FCC)
2.3.1 Crystal Lattice
2.4 Atom
2.4.1 Number of Protons
10338
Lithium Metal
3 117
2.4.3 Number of Neutrons
15750
Lithium Metal
4 184
2.5.2 Number of Electrons
10338
Lithium Metal
3 117
2.7 Radius of an Atom
2.7.1 Atomic Radius
NA215.00 pm
Beryllium Metal
112 265
2.7.2 Covalent Radius
NA195.00 pm
Beryllium Metal
96 260
2.7.4 Van der Waals Radius
246.00 pm249.00 pm
Zinc Metal
139 348
2.8 Atomic Weight
266.00 amu87.62 amu
Lithium Metal
6.94 294
2.9 Atomic Volume
NA33.70 cm3/mol
Manganese Metal
1.39 71.07
2.10 Adjacent Atomic Numbers
2.10.1 Previous Element
2.10.2 Next Element
2.11 Valence Electron Potential
NA25.70 (-eV)
Francium Metal
8 392.42
2.12 Lattice Constant
NA608.49 pm
Beryllium Metal
228.58 891.25
2.13 Lattice Angles
NA
π/2, π/2, π/2
2.14 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
3 Mechanical
3.1 Density
3.1.1 Density At Room Temperature
NA2.64 g/cm3
Lithium Metal
0.534 40.7
3.1.3 Density When Liquid (at m.p.)
NA2.38 g/cm3
Lithium Metal
0.512 20
3.2 Tensile Strength
NANA
Indium Metal
2.5 11000
3.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
3.4 Vapor Pressure
3.4.1 Vapor Pressure at 1000 K
NA121.00 (Pa)
Cerium Metal
2.47E-11 121
3.4.3 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
3.5 Elasticity properties
3.5.1 Shear Modulus
NA6.03 GPa
Potassium Metal
1.3 222
3.5.2 Bulk Modulus
NANA
Cesium Metal
1.6 462
3.5.4 Young's Modulus
NA15.70 GPa
Cesium Metal
1.7 528
3.6 Poisson Ratio
0.320.28
Beryllium Metal
0.032 0.47
3.7 Other Mechanical Properties
Unknown
NA
4 Magnetic
4.1 Magnetic Characteristics
4.1.1 Specific Gravity
NA2.64
Lithium Metal
0.53 4500
1.2.2 Magnetic Ordering
Unknown
Paramagnetic
1.2.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
1.2.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
1.4 Electrical Properties
1.4.1 Electrical Property
Unknown
NA
1.4.2 Resistivity
NA132.00 nΩ·m
Thallium Metal
0.18 961
1.7.1 Electrical Conductivity
NA0.08 106/cm Ω
Plutonium Metal
0.00666 0.63
1.9.1 Electron Affinity
NA5.03 kJ/mol
Mercury Metal
0 222.8
2 Thermal
2.1 Specific Heat
NA0.30 J/(kg K)
Americium Metal
0.11 3.6
2.2 Molar Heat Capacity
NA26.40 J/mol·K
Beryllium Metal
16.443 62.7
2.3 Thermal Conductivity
NA35.40 W/m·K
Neptunium Metal
6.3 429
2.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
2.5 Thermal Expansion
NA22.50 µm/(m·K)
Tungsten Metal
4.5 97
2.6 Enthalpy
2.6.1 Enthalpy of Vaporization
NA150.00 kJ/mol
Zinc Metal
7.32 799.1
2.6.4 Enthalpy of Fusion
NA9.16 kJ/mol
Cesium Metal
2.1 35.23
2.6.6 Enthalpy of Atomization
NA163.20 kJ/mol
Mercury Metal
61.5 837
2.7 Standard Molar Entropy
NA55.00 J/mol.K
Beryllium Metal
9.5 198.1