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Mendelevium
Mendelevium

Cadmium
Cadmium



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Mendelevium
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Mendelevium Cadmium Comparison

1 Periodic Table
1.1 Symbol
Md
Cd
1.2 Group Number
NA12
Gadolinium Metal
0 17
1.3 Period Number
75
Lithium Metal
2 7
1.4 Block
f block
d block
1.5 Element Family
Actinide
Transition Metal
1.6 CAS Number
74401117440439
Aluminium Metal
7429905 54386242
1.7 Space Group Name
Not Available
P63/mmc
1.8 Space Group Number
NA194.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  • Naturally occurring minor elements include Cadmium.
  • Cadmium is released into atmosphere to control volcanic eruption and forest fires.
  • It is used for electroplating of Steel for corrosion resistance.
  • It can absorb neutrons and used in nuclear reactor to control atomic fission.
2.2 Sources
Bombarding Einsteinium with Helium Ions
Found As a By-product, Found in Minerals, Mining
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Karl Samuel Leberecht Hermann and Friedrich Stromeyer
2.3.2 Discovery
In 1955
In 1817
2.4 Abundance
2.4.1 Abundance In Universe
NA2 * 10-7 %
Thallium Metal
5E-09 0.11
2.4.3 Abundance In Sun
~-9999 %~0.0000006 %
Beryllium Metal
1E-08 0.1
2.4.6 Abundance In Meteorites
NA0.00 %
Gold Metal
1.7E-07 22
2.4.8 Abundance In Earth's Crust
NA0.00 %
Radium Metal
9.9E-12 8.1
2.4.11 Abundance In Oceans
NA0.00 %
Protactinium Metal
2E-23 1.1
2.4.13 Abundance In Humans
NA0.00 %
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  • It has very limited uses as it is a toxic metal and it can cause birth defects, cancer, etc.
  • Almost 80% of Cadmium metal is used in Nickel cadmium Batteries and now it is getting replaced with nickel hydride.
3.1.1 Industrial Uses
NA
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
NA
Alloys
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-30.01 Blood/mg dm-3
Plutonium Metal
0 1970
3.2.5 In Bone
0.00 p.p.m.1.80 p.p.m.
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
827.00 °C320.90 °C
Francium Metal
27 3410
4.3 Boiling Point
NA765.00 °C
Flerovium Metal
147 5660
4.5 Appearance
4.5.1 Physical State
Solid
Solid
4.5.2 Color
Unknown
Silvery Bluish-Gray
4.5.3 Luster
Metallic
Metallic
4.6 Hardness
4.6.1 Mohs Hardness
NA2.00
Cesium Metal
0.2 8.5
5.1.1 Brinell Hardness
NA203.00 MPa
Cesium Metal
0.14 3490
5.4.2 Vickers Hardness
NANA
Palladium Metal
121 3430
5.5 Speed of Sound
NA2,310.00 m/s
Thallium Metal
818 16200
5.6 Optical Properties
5.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
5.6.2 Reflectivity
NA67.00 %
Molybdenum Metal
58 97
5.7 Allotropes
5.7.1 α Allotropes
Not Available
Not Available
5.7.2 β Allotropes
Not Available
Not Available
5.7.3 γ Allotropes
Not Available
Not Available
6 Chemical
6.1 Chemical Formula
Md
Cd
6.2 Isotopes
6.2.1 Known Isotopes
1634
Tennessine Metal
0 38
6.3 Electronegativity
6.3.1 Pauling Electronegativity
1.301.69
Francium Metal
0.7 2.54
6.3.3 Sanderson Electronegativity
NA1.98
Cesium Metal
0.22 2.56
6.4.1 Allred Rochow Electronegativity
1.201.46
Cesium Metal
0.86 1.82
6.4.2 Mulliken-Jaffe Electronegativity
NA1.53
Cesium Metal
0.62 2.48
6.5.1 Allen Electronegativity
NA1.52
Cesium Metal
0.659 2.7
6.8 Electropositivity
6.8.1 Pauling Electropositivity
2.702.31
Gold Metal
1.46 3.3
6.10 Ionization Energies
6.10.1 1st Energy Level
635.00 kJ/mol867.80 kJ/mol
Cesium Metal
375.7 26130
6.10.2 2nd Energy Level
1,235.00 kJ/mol1,631.40 kJ/mol
Ruthenium Metal
710.2162 28750
6.12.1 3rd Energy Level
2,470.00 kJ/mol3,616.00 kJ/mol
Osmium Metal
1600 34230
7.1.2 4th Energy Level
3,840.00 kJ/molNA
Thorium Metal
2780 37066
7.1.4 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
7.2.1 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
7.2.2 7th Energy level
NANA
Bohrium Metal
7226.8 114300
7.3.1 8th Energy Level
NANA
Hassium Metal
8857.4 125300
7.4.2 9th Energy Level
NANA
Yttrium Metal
14110 134700
7.4.4 10th Energy Level
NANA
Strontium Metal
17100 144300
7.5.2 11th Energy Level
NANA
Yttrium Metal
19900 169988
7.5.4 12th Energy Level
NANA
Molybdenum Metal
22219 189368
7.5.5 13th Energy Level
NANA
Molybdenum Metal
26930 76015
7.5.7 14th Energy Level
NANA
Molybdenum Metal
29196 86450
7.6.1 15th Energy Level
NANA
Manganese Metal
41987 97510
8.1.2 16th Energy Level
NANA
Iron Metal
47206 109480
8.1.5 17th Energy Level
NANA
Cobalt Metal
52737 122200
8.1.7 18th Energy Level
NANA
Nickel Metal
58570 134810
8.2.3 19th Energy Level
NANA
Copper Metal
64702 148700
8.2.4 20th Energy Level
NANA
Molybdenum Metal
80400 171200
8.2.6 21st Energy Level
NANA
Molybdenum Metal
87000 179100
8.2.7 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
8.2.9 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
8.2.10 24th Energy Level
NANA
Molybdenum Metal
104400 195200
9.1.1 25th Energy Level
NANA
Molybdenum Metal
121900 121900
9.1.2 26th Energy Level
NANA
Molybdenum Metal
127700 127700
9.2.1 27th Energy Level
NANA
Molybdenum Metal
133800 133800
9.2.2 28th Energy Level
NANA
Molybdenum Metal
139800 139800
9.3.1 29th Energy Level
NANA
Molybdenum Metal
148100 148100
9.3.2 30th Energy Level
NANA
Molybdenum Metal
154500 154500
9.5 Electrochemical Equivalent
3.21 g/amp-hr2.10 g/amp-hr
Beryllium Metal
0.16812 8.3209
9.7 Electron Work Function
NA4.22 eV
Cesium Metal
2.14 5.65
9.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
10 Atomic
10.1 Atomic Number
10148
Lithium Metal
3 117
10.3 Electron Configuration
[Rn] 5f13 7s2
[Kr] 4d10 5s2
10.4 Crystal Structure
Not Known
Hexagonal Close Packed (HCP)
10.4.1 Crystal Lattice
10.5 Atom
10.5.1 Number of Protons
10148
Lithium Metal
3 117
10.5.3 Number of Neutrons
15764
Lithium Metal
4 184
10.5.5 Number of Electrons
10148
Lithium Metal
3 117
10.7 Radius of an Atom
10.7.1 Atomic Radius
NA151.00 pm
Beryllium Metal
112 265
10.7.2 Covalent Radius
NA144.00 pm
Beryllium Metal
96 260
10.7.3 Van der Waals Radius
246.00 pm158.00 pm
Zinc Metal
139 348
10.8 Atomic Weight
258.00 amu112.41 amu
Lithium Metal
6.94 294
10.9 Atomic Volume
NA13.10 cm3/mol
Manganese Metal
1.39 71.07
10.10 Adjacent Atomic Numbers
10.10.1 Previous Element
10.10.2 Next Element
10.11 Valence Electron Potential
NA30.00 (-eV)
Francium Metal
8 392.42
10.12 Lattice Constant
NA297.94 pm
Beryllium Metal
228.58 891.25
10.13 Lattice Angles
NA
π/2, π/2, 2 π/3
10.14 Lattice C/A Ratio
NA1.89
Beryllium Metal
1.567 1.886
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
NA8.65 g/cm3
Lithium Metal
0.534 40.7
11.1.2 Density When Liquid (at m.p.)
NA8.00 g/cm3
Lithium Metal
0.512 20
11.2 Tensile Strength
NA62.00 MPa
Indium Metal
2.5 11000
11.3 Viscosity
NANA
Mercury Metal
0.001526 0.001526
11.4 Vapor Pressure
11.4.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
11.4.2 Vapor Pressure at 2000 K
NANA
Tungsten Metal
2.62E-10 774
11.5 Elasticity properties
11.5.1 Shear Modulus
NA19.00 GPa
Potassium Metal
1.3 222
11.5.2 Bulk Modulus
NA42.00 GPa
Cesium Metal
1.6 462
11.5.3 Young's Modulus
NA50.00 GPa
Cesium Metal
1.7 528
11.6 Poisson Ratio
NA0.30
Beryllium Metal
0.032 0.47
11.7 Other Mechanical Properties
Unknown
Ductile, Malleable
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
NA8.65
Lithium Metal
0.53 4500
12.1.2 Magnetic Ordering
Unknown
Diamagnetic
12.1.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
12.1.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
12.2 Electrical Properties
12.2.1 Electrical Property
Unknown
Semiconductor
12.2.2 Resistivity
NA72.70 nΩ·m
Thallium Metal
0.18 961
12.2.3 Electrical Conductivity
NA0.14 106/cm Ω
Plutonium Metal
0.00666 0.63
12.2.4 Electron Affinity
NA0.00 kJ/mol
Mercury Metal
0 222.8
13 Thermal
13.1 Specific Heat
NA0.23 J/(kg K)
Americium Metal
0.11 3.6
13.2 Molar Heat Capacity
NA26.02 J/mol·K
Beryllium Metal
16.443 62.7
13.3 Thermal Conductivity
NA96.60 W/m·K
Neptunium Metal
6.3 429
13.4 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
13.5 Thermal Expansion
NA30.80 µm/(m·K)
Tungsten Metal
4.5 97
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
NA100.00 kJ/mol
Zinc Metal
7.32 799.1
13.6.2 Enthalpy of Fusion
NA6.19 kJ/mol
Cesium Metal
2.1 35.23
13.6.3 Enthalpy of Atomization
NA113.00 kJ/mol
Mercury Metal
61.5 837
13.7 Standard Molar Entropy
NA51.80 J/mol.K
Beryllium Metal
9.5 198.1