1 Periodic Table
1.1 Symbol
1.2 Group Number
1.3 Period Number
1.4 Block
1.5 Element Family
Actinide
Transition Metal
1.6 CAS Number
74401117440439
7429905
54386242
1.7 Space Group Name
1.8 Space Group Number
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
2.4 Abundance
2.4.1 Abundance In Universe
2.4.3 Abundance In Sun
~-9999 %~0.0000006 %
1E-08
0.1
2.4.6 Abundance In Meteorites
2.4.8 Abundance In Earth's Crust
2.4.11 Abundance In Oceans
2.4.13 Abundance In Humans
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
3.1.3 Other Uses
3.2 Biological Properties
3.2.1 Toxicity
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
0
1970
3.2.5 In Bone
0.00 p.p.m.1.80 p.p.m.
0
170000
4 Physical
4.1 Melting Point
827.00 °C320.90 °C
27
3410
4.3 Boiling Point
4.5 Appearance
4.5.1 Physical State
4.5.2 Color
Unknown
Silvery Bluish-Gray
4.5.3 Luster
4.6 Hardness
4.6.1 Mohs Hardness
5.1.1 Brinell Hardness
5.4.2 Vickers Hardness
5.5 Speed of Sound
5.6 Optical Properties
5.6.1 Refractive Index
5.6.2 Reflectivity
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
6.2 Isotopes
6.2.1 Known Isotopes
6.3 Electronegativity
6.3.1 Pauling Electronegativity
6.3.3 Sanderson Electronegativity
6.4.1 Allred Rochow Electronegativity
6.4.2 Mulliken-Jaffe Electronegativity
6.5.1 Allen Electronegativity
6.8 Electropositivity
6.8.1 Pauling Electropositivity
6.10 Ionization Energies
6.10.1 1st Energy Level
635.00 kJ/mol867.80 kJ/mol
375.7
26130
6.10.2 2nd Energy Level
1,235.00 kJ/mol1,631.40 kJ/mol
710.2162
28750
6.12.1 3rd Energy Level
2,470.00 kJ/mol3,616.00 kJ/mol
1600
34230
7.1.2 4th Energy Level
3,840.00 kJ/molNA
2780
37066
7.1.4 5th Energy Level
7.2.1 6th Energy Level
7.2.2 7th Energy level
7.3.1 8th Energy Level
7.4.2 9th Energy Level
7.4.4 10th Energy Level
7.5.2 11th Energy Level
7.5.4 12th Energy Level
7.5.5 13th Energy Level
7.5.7 14th Energy Level
7.6.1 15th Energy Level
8.1.2 16th Energy Level
8.1.5 17th Energy Level
8.1.7 18th Energy Level
8.2.3 19th Energy Level
8.2.4 20th Energy Level
8.2.6 21st Energy Level
8.2.7 22nd Energy Level
8.2.9 23rd Energy Level
8.2.10 24th Energy Level
9.1.1 25th Energy Level
9.1.2 26th Energy Level
9.2.1 27th Energy Level
9.2.2 28th Energy Level
9.3.1 29th Energy Level
9.3.2 30th Energy Level
9.5 Electrochemical Equivalent
3.21 g/amp-hr2.10 g/amp-hr
0.16812
8.3209
9.7 Electron Work Function
9.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
10 Atomic
10.1 Atomic Number
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
10.5.3 Number of Neutrons
10.5.5 Number of Electrons
10.7 Radius of an Atom
10.7.1 Atomic Radius
10.7.2 Covalent Radius
10.7.3 Van der Waals Radius
246.00 pm158.00 pm
139
348
10.8 Atomic Weight
258.00 amu112.41 amu
6.94
294
10.9 Atomic Volume
NA13.10 cm3/mol
1.39
71.07
10.10 Adjacent Atomic Numbers
10.10.1 Previous Element
10.10.2 Next Element
10.11 Valence Electron Potential
10.12 Lattice Constant
NA297.94 pm
228.58
891.25
10.13 Lattice Angles
10.14 Lattice C/A Ratio
11 Mechanical
11.1 Density
11.1.1 Density At Room Temperature
11.1.2 Density When Liquid (at m.p.)
11.2 Tensile Strength
11.3 Viscosity
11.4 Vapor Pressure
11.4.1 Vapor Pressure at 1000 K
11.4.2 Vapor Pressure at 2000 K
11.5 Elasticity properties
11.5.1 Shear Modulus
11.5.2 Bulk Modulus
11.5.3 Young's Modulus
11.6 Poisson Ratio
11.7 Other Mechanical Properties
Unknown
Ductile, Malleable
12 Magnetic
12.1 Magnetic Characteristics
12.1.1 Specific Gravity
12.1.2 Magnetic Ordering
12.1.3 Permeability
12.1.4 Susceptibility
12.2 Electrical Properties
12.2.1 Electrical Property
12.2.2 Resistivity
12.2.3 Electrical Conductivity
NA0.14 106/cm Ω
0.00666
0.63
12.2.4 Electron Affinity
13 Thermal
13.1 Specific Heat
13.2 Molar Heat Capacity
NA26.02 J/mol·K
16.443
62.7
13.3 Thermal Conductivity
13.4 Critical Temperature
13.5 Thermal Expansion
13.6 Enthalpy
13.6.1 Enthalpy of Vaporization
NA100.00 kJ/mol
7.32
799.1
13.6.2 Enthalpy of Fusion
13.6.3 Enthalpy of Atomization
13.7 Standard Molar Entropy
NA51.80 J/mol.K
9.5
198.1