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Strontium
Strontium

Promethium
Promethium



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Promethium

Strontium Promethium Comparison

1 Periodic Table
1.1 Symbol
Sr
Pm
1.2 Group Number
Tennessine Metal
2
Rank: 16 (Overall)
Not Available
Rank: N/A (Overall)
Gadolinium Metal
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1.3 Period Number
Uranium Metal
5
Rank: 3 (Overall)
6
Rank: 2 (Overall)
Lithium Metal
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1.4 Block
s block
f block
1.5 Element Family
Alkaline Earth
Lanthanide
1.6 CAS Number
Roentgenium Met..
7440246
Rank: 56 (Overall)
7440122
Rank: 67 (Overall)
Aluminium Metal
1.7 Space Group Name
Fm_ 3m
Not Available
1.8 Space Group Number
Sodium Metal
225.00
Rank: 2 (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
ADD ⊕
2 Facts
2.1 Interesting Facts
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
  • Promethium metal found in Pitchblende.
  • Promethium metal is highly radioactive metal.
2.2 Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
William Cruickshank
Chien Shiung Wu, Emilio Segrè, Hans Bethe
2.3.2 Discovery
In 1787
In 1942
2.4 Abundance
2.4.1 Abundance In Universe
Iron Metal
4 * 10-6 %
Rank: 14 (Overall)
Not Available
Rank: N/A (Overall)
Thallium Metal
2.4.2 Abundance In Sun
Iron Metal
~0.000005 %
Rank: 15 (Overall)
~-9999 %
Rank: N/A (Overall)
Beryllium Metal
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2.4.3 Abundance In Meteorites
Iron Metal
0.00 %
Rank: 15 (Overall)
Not Available
Rank: N/A (Overall)
Gold Metal
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2.4.4 Abundance In Earth's Crust
Aluminium Metal
0.04 %
Rank: 10 (Overall)
Not Available
Rank: N/A (Overall)
Radium Metal
ADD ⊕
2.4.5 Abundance In Oceans
Sodium Metal
0.00 %
Rank: 4 (Overall)
Not Available
Rank: N/A (Overall)
Protactinium Metal
2.4.6 Abundance In Humans
Calcium Metal
0.00 %
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Radium Metal
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3 Uses
3.1 Uses & Benefits
  • 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.
  • It is used for research purpose. Very small amount of this metal is used in atomic batteries.
  • Its radioactive decay is used for a phosphor to give off light. The light emitted is converted into electricity.
3.1.1 Industrial Uses
Ammunition Industry, Chemical Industry
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys
NA
3.2 Biological Properties
3.2.1 Toxicity
Non Toxic
Non Toxic
3.2.2 Present in Human Body
83% Alkaline Earth Metals Metals have it !
27% Lanthanide Series Metals have it !
3.2.3 In Blood
Sodium Metal
0.03 Blood/mg dm-3
Rank: 19 (Overall)
0.00 Blood/mg dm-3
Rank: 37 (Overall)
Plutonium Metal
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3.2.4 In Bone
Calcium Metal
140.00 p.p.m.
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
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4 Physical
4.1 Melting Point
Tungsten Metal
769.00 °C
Rank: 57 (Overall)
1,042.00 °C
Rank: 43 (Overall)
Francium Metal
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4.2 Boiling Point
Tungsten Metal
1,384.00 °C
Rank: 61 (Overall)
3,000.00 °C
Rank: 31 (Overall)
Flerovium Metal
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4.3 Appearance
4.3.1 Physical State
Solid
Solid
4.3.2 Color
Silvery White
Unknown
4.3.3 Luster
Metallic
Metallic
4.4 Hardness
4.4.1 Mohs Hardness
Chromium Metal
1.50
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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4.4.2 Brinell Hardness
Osmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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4.4.3 Vickers Hardness
Tungsten Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Palladium Metal
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4.5 Speed of Sound
Technetium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Thallium Metal
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4.6 Optical Properties
4.6.1 Refractive Index
Palladium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
4.6.2 Reflectivity
Silver Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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4.7 Allotropes
No Alkaline Earth Metals Metals has it !
No Lanthanide Series Metals has it !
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
Sr
Pm
5.2 Isotopes
5.2.1 Known Isotopes
Palladium Metal
27
Rank: 12 (Overall)
27
Rank: 12 (Overall)
Tennessine Metal
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5.3 Electronegativity
5.3.1 Pauling Electronegativity
Gold Metal
0.95
Rank: 47 (Overall)
Not Available
Rank: N/A (Overall)
Francium Metal
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5.3.2 Sanderson Electronegativity
Cobalt Metal
0.72
Rank: 27 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.3.3 Allred Rochow Electronegativity
Gallium Metal
0.99
Rank: 37 (Overall)
1.07
Rank: 32 (Overall)
Cesium Metal
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5.3.4 Mulliken-Jaffe Electronegativity
Polonium Metal
1.00
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.3.5 Allen Electronegativity
Berkelium Metal
0.96
Rank: 40 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
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5.4 Electropositivity
5.4.1 Pauling Electropositivity
Francium Metal
3.05
Rank: 7 (Overall)
Not Available
Rank: N/A (Overall)
Gold Metal
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5.5 Ionization Energies
5.5.1 1st Energy Level
Chromium Metal
549.50 kJ/mol
Rank: 70 (Overall)
540.00 kJ/mol
Rank: 73 (Overall)
Cesium Metal
5.5.2 2nd Energy Level
Chromium Metal
1,064.20 kJ/mol
Rank: 77 (Overall)
1,050.00 kJ/mol
Rank: 78 (Overall)
Ruthenium Metal
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5.5.3 3rd Energy Level
Chromium Metal
4,138.00 kJ/mol
Rank: 10 (Overall)
2,150.00 kJ/mol
Rank: 67 (Overall)
Osmium Metal
ADD ⊕
5.5.4 4th Energy Level
Chromium Metal
5,500.00 kJ/mol
Rank: 13 (Overall)
3,970.00 kJ/mol
Rank: 38 (Overall)
Thorium Metal
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5.5.5 5th Energy Level
Chromium Metal
6,910.00 kJ/mol
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Dubnium Metal
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5.5.6 6th Energy Level
Chromium Metal
8,760.00 kJ/mol
Rank: 18 (Overall)
Not Available
Rank: N/A (Overall)
Seaborgium Metal
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5.5.7 7th Energy level
Chromium Metal
10,230.00 kJ/mol
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Bohrium Metal
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5.5.8 8th Energy Level
Chromium Metal
11,800.00 kJ/mol
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Hassium Metal
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5.5.9 9th Energy Level
Chromium Metal
15,600.00 kJ/mol
Rank: 17 (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
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5.5.10 10th Energy Level
Chromium Metal
17,100.00 kJ/mol
Rank: 19 (Overall)
Not Available
Rank: N/A (Overall)
Strontium Metal
5.5.11 11th Energy Level
Magnesium Metal
31,270.00 kJ/mol
Rank: 6 (Overall)
Not Available
Rank: N/A (Overall)
Yttrium Metal
5.5.12 12th Energy Level
Magnesium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.13 13th Energy Level
Titanium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.14 14th Energy Level
Vanadium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.15 15th Energy Level
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Manganese Metal
5.5.16 16th Energy Level
Manganese Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Iron Metal
5.5.17 17th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Cobalt Metal
5.5.18 18th Energy Level
Cobalt Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Nickel Metal
ADD ⊕
5.5.19 19th Energy Level
Nickel Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Copper Metal
5.5.20 20th Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.21 21st Energy Level
Zinc Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.22 22nd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.23 23rd Energy Level
Copper Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.24 24th Energy Level
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
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5.5.25 25th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.26 26th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.27 27th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.28 28th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.29 29th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.5.30 30th Energy Level
Molybdenum Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Molybdenum Metal
5.6 Electrochemical Equivalent
Francium Metal
1.64 g/amp-hr
Rank: 45 (Overall)
1.80 g/amp-hr
Rank: 36 (Overall)
Beryllium Metal
ADD ⊕
5.7 Electron Work Function
Platinum Metal
2.59 eV
Rank: 42 (Overall)
Not Available
Rank: N/A (Overall)
Cesium Metal
ADD ⊕
5.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes, Solubility
6 Atomic
6.1 Atomic Number
Tennessine Metal
38
Rank: 74 (Overall)
61
Rank: 55 (Overall)
Lithium Metal
ADD ⊕
6.2 Electron Configuration
[Kr] 5s2
[Xe] 4f5 6s2
6.3 Crystal Structure
Face Centered Cubic (FCC)
Double Hexagonal Close Packed (DHCP)
6.3.1 Crystal Lattice
6.4 Atom
6.4.1 Number of Protons
Tennessine Metal
38
Rank: 73 (Overall)
61
Rank: 54 (Overall)
Lithium Metal
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6.4.2 Number of Neutrons
Flerovium Metal
50
Rank: 55 (Overall)
84
Rank: 40 (Overall)
Lithium Metal
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6.4.3 Number of Electrons
Tennessine Metal
38
Rank: 73 (Overall)
61
Rank: 54 (Overall)
Lithium Metal
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6.5 Radius of an Atom
6.5.1 Atomic Radius
Cesium Metal
215.00 pm
Rank: 5 (Overall)
183.00 pm
Rank: 10 (Overall)
Beryllium Metal
ADD ⊕
6.5.2 Covalent Radius
Francium Metal
195.00 pm
Rank: 15 (Overall)
199.00 pm
Rank: 12 (Overall)
Beryllium Metal
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6.5.3 Van der Waals Radius
Francium Metal
249.00 pm
Rank: 7 (Overall)
236.00 pm
Rank: 16 (Overall)
Zinc Metal
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6.6 Atomic Weight
Tennessine Metal
87.62 amu
Rank: 68 (Overall)
145.00 amu
Rank: 49 (Overall)
Lithium Metal
6.7 Atomic Volume
Cesium Metal
33.70 cm3/mol
Rank: 6 (Overall)
22.39 cm3/mol
Rank: 12 (Overall)
Manganese Metal
6.8 Adjacent Atomic Numbers
6.8.1 Previous Element
6.8.2 Next Element
6.9 Valence Electron Potential
Platinum Metal
25.70 (-eV)
Rank: 56 (Overall)
44.10 (-eV)
Rank: 39 (Overall)
Francium Metal
ADD ⊕
6.10 Lattice Constant
Manganese Metal
608.49 pm
Rank: 6 (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
6.11 Lattice Angles
π/2, π/2, π/2
Unknown
6.12 Lattice C/A Ratio
Cadmium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
7 Mechanical
7.1 Density
7.1.1 Density At Room Temperature
Hassium Metal
2.64 g/cm3
Rank: 75 (Overall)
7.26 g/cm3
Rank: 56 (Overall)
Lithium Metal
ADD ⊕
7.1.2 Density When Liquid (at m.p.)
Osmium Metal
2.38 g/cm3
Rank: 52 (Overall)
Not Available
Rank: N/A (Overall)
Lithium Metal
ADD ⊕
7.2 Tensile Strength
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Indium Metal
ADD ⊕
7.3 Viscosity
Mercury Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Mercury Metal
7.4 Vapor Pressure
7.4.1 Vapor Pressure at 1000 K
Strontium Metal
121.00 (Pa)
Rank: 1 (Overall)
Not Available
Rank: N/A (Overall)
Cerium Metal
ADD ⊕
7.4.2 Vapor Pressure at 2000 K
Chromium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Tungsten Metal
ADD ⊕
7.5 Elasticity properties
7.5.1 Shear Modulus
Osmium Metal
6.03 GPa
Rank: 46 (Overall)
18.00 GPa
Rank: 36 (Overall)
Potassium Metal
ADD ⊕
7.5.2 Bulk Modulus
Osmium Metal
Not Available
Rank: N/A (Overall)
33.00 GPa
Rank: 36 (Overall)
Cesium Metal
ADD ⊕
7.5.3 Young's Modulus
Iridium Metal
15.70 GPa
Rank: 49 (Overall)
46.00 GPa
Rank: 38 (Overall)
Cesium Metal
ADD ⊕
7.6 Poisson Ratio
Gallium Metal
0.28
Rank: 17 (Overall)
0.28
Rank: 17 (Overall)
Beryllium Metal
ADD ⊕
7.7 Other Mechanical Properties
NA
NA
8 Magnetic
8.1 Magnetic Characteristics
8.1.1 Specific Gravity
Cobalt Metal
2.64
Rank: 63 (Overall)
7.26
Rank: 43 (Overall)
Lithium Metal
ADD ⊕
8.1.2 Magnetic Ordering
Paramagnetic
Paramagnetic
8.1.3 Permeability
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
ADD ⊕
8.1.4 Susceptibility
Iron Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Bismuth Metal
ADD ⊕
8.2 Electrical Properties
8.2.1 Electrical Property
NA
Conductor
8.2.2 Resistivity
Mercury Metal
132.00 nΩ·m
Rank: 24 (Overall)
0.75 nΩ·m
Rank: 64 (Overall)
Thallium Metal
ADD ⊕
8.2.3 Electrical Conductivity
Silver Metal
0.08 106/cm Ω
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Plutonium Metal
ADD ⊕
8.2.4 Electron Affinity
Gold Metal
5.03 kJ/mol
Rank: 38 (Overall)
50.00 kJ/mol
Rank: 21 (Overall)
Mercury Metal
ADD ⊕
9 Thermal
9.1 Specific Heat
Lithium Metal
0.30 J/(kg K)
Rank: 18 (Overall)
0.18 J/(kg K)
Rank: 33 (Overall)
Americium Metal
9.2 Molar Heat Capacity
Americium Metal
26.40 J/mol·K
Rank: 28 (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
9.3 Thermal Conductivity
Silver Metal
35.40 W/m·K
Rank: 37 (Overall)
17.90 W/m·K
Rank: 47 (Overall)
Neptunium Metal
ADD ⊕
9.4 Critical Temperature
Lithium Metal
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Ytterbium Metal
ADD ⊕
9.5 Thermal Expansion
Cesium Metal
22.50 µm/(m·K)
Rank: 18 (Overall)
9.00 µm/(m·K)
Rank: 43 (Overall)
Tungsten Metal
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9.6 Enthalpy
9.6.1 Enthalpy of Vaporization
Tungsten Metal
150.00 kJ/mol
Rank: 47 (Overall)
Not Available
Rank: N/A (Overall)
Zinc Metal
ADD ⊕
9.6.2 Enthalpy of Fusion
Tungsten Metal
9.16 kJ/mol
Rank: 38 (Overall)
7.50 kJ/mol
Rank: 43 (Overall)
Cesium Metal
ADD ⊕
9.6.3 Enthalpy of Atomization
Tungsten Metal
163.20 kJ/mol
Rank: 50 (Overall)
310.00 kJ/mol
Rank: 34 (Overall)
Mercury Metal
ADD ⊕
9.7 Standard Molar Entropy
Protactinium Me..
55.00 J/mol.K
Rank: 26 (Overall)
Not Available
Rank: N/A (Overall)
Beryllium Metal
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