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Mendelevium
Mendelevium

Strontium
Strontium



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Mendelevium
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Strontium

Mendelevium Strontium Comparison

1 Periodic Table
1.1 Symbol
Md
Sr
1.2 Group Number
NA2
Gadolinium Metal
0 17
1.4 Period Number
75
Lithium Metal
2 7
1.6 Block
f block
s block
1.7 Element Family
Actinide
Alkaline Earth
1.8 CAS Number
74401117440246
Aluminium Metal
7429905 54386242
1.11 Space Group Name
Not Available
Fm_ 3m
1.12 Space Group Number
NA225.00
Plutonium Metal
11 229
3 Facts
3.1 Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  • Strontium element is softer than Calcium.
  • Silvery Strontium turns yellow, if exposed to air.
3.2 Sources
Bombarding Einsteinium with Helium Ions
Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Lawrence Berkeley National Laboratory
William Cruickshank
3.3.3 Discovery
In 1955
In 1787
3.4 Abundance
3.4.1 Abundance In Universe
NA4 * 10-6 %
Thallium Metal
5E-09 0.11
4.1.2 Abundance In Sun
~-9999 %~0.000005 %
Beryllium Metal
1E-08 0.1
4.2.5 Abundance In Meteorites
NA0.00 %
Gold Metal
1.7E-07 22
4.3.3 Abundance In Earth's Crust
NA0.04 %
Radium Metal
9.9E-12 8.1
4.5.3 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
4.6.1 Abundance In Humans
NA0.00 %
Radium Metal
1E-13 1.4
6 Uses
6.1 Uses & Benefits
  • Currently known uses of Mendelevium 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.
6.1.1 Industrial Uses
NA
Ammunition Industry, Chemical Industry
6.1.2 Medical Uses
NA
NA
6.1.3 Other Uses
NA
Alloys
6.2 Biological Properties
6.2.1 Toxicity
Unknown
Non Toxic
6.2.2 Present in Human Body
6.2.3 In Blood
0.00 Blood/mg dm-30.03 Blood/mg dm-3
Plutonium Metal
0 1970
6.4.1 In Bone
0.00 p.p.m.140.00 p.p.m.
Plutonium Metal
0 170000
7 Physical
7.1 Melting Point
827.00 °C769.00 °C
Francium Metal
27 3410
8.2 Boiling Point
NA1,384.00 °C
Flerovium Metal
147 5660
9.3 Appearance
9.3.1 Physical State
Solid
Solid
9.3.2 Color
Unknown
Silvery White
9.3.3 Luster
Metallic
Metallic
9.4 Hardness
9.4.1 Mohs Hardness
NA1.50
Cesium Metal
0.2 8.5
9.6.1 Brinell Hardness
NANA
Cesium Metal
0.14 3490
9.8.1 Vickers Hardness
NANA
Palladium Metal
121 3430
9.10 Speed of Sound
NANA
Thallium Metal
818 16200
9.14 Optical Properties
9.14.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
9.15.2 Reflectivity
NANA
Molybdenum Metal
58 97
9.17 Allotropes
9.17.1 α Allotropes
Not Available
Not Available
9.17.2 β Allotropes
Not Available
Not Available
9.17.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
Md
Sr
10.2 Isotopes
10.2.1 Known Isotopes
1627
Tennessine Metal
0 38
10.4 Electronegativity
10.4.1 Pauling Electronegativity
1.300.95
Francium Metal
0.7 2.54
10.5.1 Sanderson Electronegativity
NA0.72
Cesium Metal
0.22 2.56
10.5.2 Allred Rochow Electronegativity
1.200.99
Cesium Metal
0.86 1.82
10.5.3 Mulliken-Jaffe Electronegativity
NA1.00
Cesium Metal
0.62 2.48
10.6.1 Allen Electronegativity
NA0.96
Cesium Metal
0.659 2.7
10.7 Electropositivity
10.7.1 Pauling Electropositivity
2.703.05
Gold Metal
1.46 3.3
11.2 Ionization Energies
11.2.1 1st Energy Level
635.00 kJ/mol549.50 kJ/mol
Cesium Metal
375.7 26130
11.2.4 2nd Energy Level
1,235.00 kJ/mol1,064.20 kJ/mol
Ruthenium Metal
710.2162 28750
11.2.6 3rd Energy Level
2,470.00 kJ/mol4,138.00 kJ/mol
Osmium Metal
1600 34230
11.3.2 4th Energy Level
3,840.00 kJ/mol5,500.00 kJ/mol
Thorium Metal
2780 37066
11.3.4 5th Energy Level
NA6,910.00 kJ/mol
Dubnium Metal
4305.2 97510
11.3.6 6th Energy Level
NA8,760.00 kJ/mol
Seaborgium Metal
5715.8 105800
11.3.8 7th Energy level
NA10,230.00 kJ/mol
Bohrium Metal
7226.8 114300
11.3.9 8th Energy Level
NA11,800.00 kJ/mol
Hassium Metal
8857.4 125300
12.1.1 9th Energy Level
NA15,600.00 kJ/mol
Yttrium Metal
14110 134700
12.1.2 10th Energy Level
NA17,100.00 kJ/mol
Copper
17100 144300
12.1.3 11th Energy Level
NA31,270.00 kJ/mol
Yttrium Metal
19900 169988
12.2.1 12th Energy Level
NANA
Molybdenum Metal
22219 189368
12.3.1 13th Energy Level
NANA
Molybdenum Metal
26930 76015
12.3.2 14th Energy Level
NANA
Molybdenum Metal
29196 86450
12.3.3 15th Energy Level
NANA
Manganese Metal
41987 97510
12.3.4 16th Energy Level
NANA
Iron Metal
47206 109480
12.3.5 17th Energy Level
NANA
Cobalt Metal
52737 122200
12.3.6 18th Energy Level
NANA
Nickel Metal
58570 134810
12.4.1 19th Energy Level
NANA
Copper Metal
64702 148700
12.4.2 20th Energy Level
NANA
Molybdenum Metal
80400 171200
12.5.1 21st Energy Level
NANA
Molybdenum Metal
87000 179100
12.5.2 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
12.5.3 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
12.5.4 24th Energy Level
NANA
Molybdenum Metal
104400 195200
12.5.5 25th Energy Level
NANA
Molybdenum Metal
121900 121900
12.5.6 26th Energy Level
NANA
Molybdenum Metal
127700 127700
12.5.7 27th Energy Level
NANA
Molybdenum Metal
133800 133800
12.5.8 28th Energy Level
NANA
Molybdenum Metal
139800 139800
12.6.2 29th Energy Level
NANA
Molybdenum Metal
148100 148100
12.6.3 30th Energy Level
NANA
Molybdenum Metal
154500 154500
12.7 Electrochemical Equivalent
3.21 g/amp-hr1.64 g/amp-hr
Beryllium Metal
0.16812 8.3209
12.8 Electron Work Function
NA2.59 eV
Cesium Metal
2.14 5.65
12.9 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes, Radioactivity, Solubility
13 Atomic
13.1 Atomic Number
10138
Lithium Metal
3 117
13.2 Electron Configuration
[Rn] 5f13 7s2
[Kr] 5s2
13.3 Crystal Structure
Not Known
Face Centered Cubic (FCC)
13.3.1 Crystal Lattice
13.4 Atom
13.4.1 Number of Protons
10138
Lithium Metal
3 117
13.4.3 Number of Neutrons
15750
Lithium Metal
4 184
13.4.4 Number of Electrons
10138
Lithium Metal
3 117
13.5 Radius of an Atom
13.5.1 Atomic Radius
NA215.00 pm
Beryllium Metal
112 265
13.6.1 Covalent Radius
NA195.00 pm
Beryllium Metal
96 260
13.6.2 Van der Waals Radius
246.00 pm249.00 pm
Zinc Metal
139 348
13.7 Atomic Weight
258.00 amu87.62 amu
Lithium Metal
6.94 294
13.8 Atomic Volume
NA33.70 cm3/mol
Manganese Metal
1.39 71.07
13.9 Adjacent Atomic Numbers
13.9.1 Previous Element
13.9.2 Next Element
13.10 Valence Electron Potential
NA25.70 (-eV)
Francium Metal
8 392.42
13.11 Lattice Constant
NA608.49 pm
Beryllium Metal
228.58 891.25
13.12 Lattice Angles
NA
π/2, π/2, π/2
13.13 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
NA2.64 g/cm3
Lithium Metal
0.534 40.7
14.1.2 Density When Liquid (at m.p.)
NA2.38 g/cm3
Lithium Metal
0.512 20
14.2 Tensile Strength
NANA
Indium Metal
2.5 11000
14.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
14.4 Vapor Pressure
14.4.1 Vapor Pressure at 1000 K
NA121.00 (Pa)
Cerium Metal
2.47E-11 121
14.4.2 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
14.5 Elasticity properties
14.5.1 Shear Modulus
NA6.03 GPa
Potassium Metal
1.3 222
14.5.2 Bulk Modulus
NANA
Cesium Metal
1.6 462
14.5.3 Young's Modulus
NA15.70 GPa
Cesium Metal
1.7 528
14.6 Poisson Ratio
NA0.28
Beryllium Metal
0.032 0.47
14.7 Other Mechanical Properties
Unknown
NA
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
NA2.64
Lithium Metal
0.53 4500
15.1.2 Magnetic Ordering
Unknown
Paramagnetic
15.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
15.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
15.2 Electrical Properties
15.2.1 Electrical Property
Unknown
NA
15.2.2 Resistivity
NA132.00 nΩ·m
Thallium Metal
0.18 961
15.2.3 Electrical Conductivity
NA0.08 106/cm Ω
Plutonium Metal
0.00666 0.63
15.2.4 Electron Affinity
NA5.03 kJ/mol
Mercury Metal
0 222.8
16 Thermal
16.1 Specific Heat
NA0.30 J/(kg K)
Americium Metal
0.11 3.6
16.2 Molar Heat Capacity
NA26.40 J/mol·K
Beryllium Metal
16.443 62.7
16.3 Thermal Conductivity
NA35.40 W/m·K
Neptunium Metal
6.3 429
16.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
16.5 Thermal Expansion
NA22.50 µm/(m·K)
Tungsten Metal
4.5 97
16.6 Enthalpy
16.6.1 Enthalpy of Vaporization
NA150.00 kJ/mol
Zinc Metal
7.32 799.1
16.6.2 Enthalpy of Fusion
NA9.16 kJ/mol
Cesium Metal
2.1 35.23
16.6.3 Enthalpy of Atomization
NA163.20 kJ/mol
Mercury Metal
61.5 837
16.7 Standard Molar Entropy
NA55.00 J/mol.K
Beryllium Metal
9.5 198.1