1 Periodic Table
1.1 Symbol
1.2 Group Number
2.5 Period Number
2.6 Block
2.7 Element Family
Actinide
Transition Metal
2.8 CAS Number
74401117440439
7429905
54386242
2.9 Space Group Name
2.10 Space Group Number
3 Facts
3.1 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.
3.2 Sources
Bombarding Einsteinium with Helium Ions
Found As a By-product, Found in Minerals, Mining
3.3 History
3.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Karl Samuel Leberecht Hermann and Friedrich Stromeyer
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
4.2.4 Abundance In Sun
~-9999 %~0.0000006 %
1E-08
0.1
4.2.6 Abundance In Meteorites
5.1.1 Abundance In Earth's Crust
5.3.3 Abundance In Oceans
5.4.3 Abundance In Humans
6 Uses
6.1 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.
6.1.1 Industrial Uses
NA
Aerospace Industry, Ammunition Industry, Chemical Industry, Electrical Industry, Electronic Industry
6.1.2 Medical Uses
6.1.3 Other Uses
6.2 Biological Properties
6.2.2 Toxicity
6.2.3 Present in Human Body
6.2.4 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
0
1970
6.2.5 In Bone
0.00 p.p.m.1.80 p.p.m.
0
170000
7 Physical
7.1 Melting Point
827.00 °C320.90 °C
27
3410
7.3 Boiling Point
8.3 Appearance
8.3.1 Physical State
8.3.2 Color
Unknown
Silvery Bluish-Gray
8.3.3 Luster
8.4 Hardness
8.4.1 Mohs Hardness
8.5.2 Brinell Hardness
8.5.4 Vickers Hardness
8.6 Speed of Sound
8.7 Optical Properties
8.7.1 Refractive Index
8.7.3 Reflectivity
8.9 Allotropes
8.9.1 α Allotropes
Not Available
Not Available
8.9.2 β Allotropes
Not Available
Not Available
8.9.3 γ Allotropes
Not Available
Not Available
9 Chemical
9.1 Chemical Formula
9.2 Isotopes
9.2.1 Known Isotopes
9.4 Electronegativity
9.4.1 Pauling Electronegativity
9.4.3 Sanderson Electronegativity
9.4.6 Allred Rochow Electronegativity
9.4.7 Mulliken-Jaffe Electronegativity
9.4.9 Allen Electronegativity
9.5 Electropositivity
9.5.1 Pauling Electropositivity
9.6 Ionization Energies
9.6.1 1st Energy Level
635.00 kJ/mol867.80 kJ/mol
375.7
26130
9.6.3 2nd Energy Level
1,235.00 kJ/mol1,631.40 kJ/mol
710.2162
28750
9.6.5 3rd Energy Level
2,470.00 kJ/mol3,616.00 kJ/mol
1600
34230
9.6.7 4th Energy Level
3,840.00 kJ/molNA
2780
37066
9.6.9 5th Energy Level
9.6.11 6th Energy Level
9.6.13 7th Energy level
9.6.15 8th Energy Level
9.6.17 9th Energy Level
9.6.19 10th Energy Level
9.6.22 11th Energy Level
9.6.24 12th Energy Level
9.6.26 13th Energy Level
9.6.29 14th Energy Level
9.6.31 15th Energy Level
9.6.33 16th Energy Level
9.6.36 17th Energy Level
9.6.38 18th Energy Level
9.6.40 19th Energy Level
9.7.1 20th Energy Level
9.7.2 21st Energy Level
9.8.1 22nd Energy Level
10.1.1 23rd Energy Level
10.4.2 24th Energy Level
10.4.4 25th Energy Level
10.4.5 26th Energy Level
10.4.7 27th Energy Level
10.4.8 28th Energy Level
10.5.2 29th Energy Level
10.5.3 30th Energy Level
10.6 Electrochemical Equivalent
3.21 g/amp-hr2.10 g/amp-hr
0.16812
8.3209
10.7 Electron Work Function
10.9 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
11 Atomic
11.1 Atomic Number
11.3 Electron Configuration
[Rn] 5f13 7s2
[Kr] 4d10 5s2
11.4 Crystal Structure
Not Known
Hexagonal Close Packed (HCP)
11.4.1 Crystal Lattice
11.5 Atom
11.5.1 Number of Protons
11.7.1 Number of Neutrons
11.8.1 Number of Electrons
11.9 Radius of an Atom
11.9.1 Atomic Radius
11.11.1 Covalent Radius
12.1.2 Van der Waals Radius
246.00 pm158.00 pm
139
348
12.2 Atomic Weight
258.00 amu112.41 amu
6.94
294
12.3 Atomic Volume
NA13.10 cm3/mol
1.39
71.07
12.6 Adjacent Atomic Numbers
12.6.1 Previous Element
12.6.2 Next Element
12.7 Valence Electron Potential
12.9 Lattice Constant
NA297.94 pm
228.58
891.25
12.10 Lattice Angles
12.11 Lattice C/A Ratio
13 Mechanical
13.1 Density
13.1.1 Density At Room Temperature
13.2.2 Density When Liquid (at m.p.)
13.3 Tensile Strength
13.4 Viscosity
13.5 Vapor Pressure
13.5.1 Vapor Pressure at 1000 K
13.5.3 Vapor Pressure at 2000 K
13.6 Elasticity properties
13.6.1 Shear Modulus
13.7.1 Bulk Modulus
13.7.2 Young's Modulus
14.2 Poisson Ratio
14.3 Other Mechanical Properties
Unknown
Ductile, Malleable
15 Magnetic
15.1 Magnetic Characteristics
15.1.1 Specific Gravity
15.1.2 Magnetic Ordering
15.1.3 Permeability
15.1.5 Susceptibility
15.3 Electrical Properties
15.3.1 Electrical Property
15.3.2 Resistivity
15.3.3 Electrical Conductivity
NA0.14 106/cm Ω
0.00666
0.63
15.3.5 Electron Affinity
16 Thermal
16.1 Specific Heat
17.2 Molar Heat Capacity
NA26.02 J/mol·K
16.443
62.7
17.4 Thermal Conductivity
17.6 Critical Temperature
17.8 Thermal Expansion
17.10 Enthalpy
17.10.1 Enthalpy of Vaporization
NA100.00 kJ/mol
7.32
799.1
17.11.2 Enthalpy of Fusion
17.11.4 Enthalpy of Atomization
17.12 Standard Molar Entropy
NA51.80 J/mol.K
9.5
198.1