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
74401117440473
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.
- Chromium is highly reactive, hence it is not found free in nature.
- Ores of Chromites mineral are the major source of Chromium metal.
- Almost 90% leather tanning is done with the help of chromium.
2.2 Sources
Bombarding Einsteinium with Helium Ions
Found in Minerals, Mining, Ores of metals, Ores of Minerals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Louis Nicolas Vauquelin
2.3.2 Discovery
In 1955
In Between 1797 - 1798
2.4 Abundance
2.4.1 Abundance In Universe
NA1.5 * 10-3 %
5E-09
0.11
2.4.4 Abundance In Sun
~-9999 %~0.002 %
1E-08
0.1
3.2.5 Abundance In Meteorites
3.2.8 Abundance In Earth's Crust
4.1.2 Abundance In Oceans
4.2.2 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Currently known uses of Mendelevium metal are limited to research purpose only.
- It is used to harden the steel and produces a stainless steel and other various alloys.
- It is also used to give proper finish to polished mirrors. Its chromium plates are used in bathroom fittings.
5.1.1 Industrial Uses
NA
Automobile Industry, Chemical Industry
5.1.2 Medical Uses
5.1.3 Other Uses
5.2 Biological Properties
5.2.1 Toxicity
5.2.2 Present in Human Body
5.3.2 In Blood
0.00 Blood/mg dm-30.11 Blood/mg dm-3
0
1970
5.4.4 In Bone
0.00 p.p.m.0.33 p.p.m.
0
170000
6 Physical
6.1 Melting Point
827.00 °C1,857.00 °C
27
3410
6.2 Boiling Point
6.4 Appearance
6.4.1 Physical State
1.1.1 Color
1.1.2 Luster
1.3 Hardness
1.3.1 Mohs Hardness
1.4.3 Brinell Hardness
1.5.3 Vickers Hardness
2.7 Speed of Sound
2.10 Optical Properties
2.10.1 Refractive Index
2.12.2 Reflectivity
3.2 Allotropes
3.2.1 α Allotropes
Not Available
Not Available
3.2.2 β Allotropes
Not Available
Not Available
3.2.3 γ Allotropes
Not Available
Not Available
4 Chemical
4.1 Chemical Formula
4.2 Isotopes
4.2.1 Known Isotopes
5.8 Electronegativity
5.8.1 Pauling Electronegativity
5.8.4 Sanderson Electronegativity
5.8.8 Allred Rochow Electronegativity
5.9.2 Mulliken-Jaffe Electronegativity
5.11.2 Allen Electronegativity
5.12 Electropositivity
5.12.1 Pauling Electropositivity
5.13 Ionization Energies
5.13.1 1st Energy Level
635.00 kJ/mol26,130.00 kJ/mol
375.7
26130
6.2.4 2nd Energy Level
1,235.00 kJ/mol28,750.00 kJ/mol
710.2162
28750
6.2.5 3rd Energy Level
2,470.00 kJ/mol34,230.00 kJ/mol
1600
34230
6.3.2 4th Energy Level
3,840.00 kJ/mol37,066.00 kJ/mol
2780
37066
7.3.1 5th Energy Level
NA97,510.00 kJ/mol
4305.2
97510
7.4.2 6th Energy Level
NA105,800.00 kJ/mol
5715.8
105800
7.5.2 7th Energy level
NA114,300.00 kJ/mol
7226.8
114300
8.2.2 8th Energy Level
NA125,300.00 kJ/mol
8857.4
125300
8.3.4 9th Energy Level
NA134,700.00 kJ/mol
14110
134700
8.3.6 10th Energy Level
NA144,300.00 kJ/mol
17100
144300
8.4.1 11th Energy Level
NA26,130.00 kJ/mol
19900
169988
8.6.2 12th Energy Level
NA28,750.00 kJ/mol
22219
189368
8.7.2 13th Energy Level
NA34,230.00 kJ/mol
26930
76015
8.9.3 14th Energy Level
NA37,066.00 kJ/mol
29196
86450
8.9.7 15th Energy Level
NA97,510.00 kJ/mol
41987
97510
9.2.2 16th Energy Level
NA105,800.00 kJ/mol
47206
109480
9.2.5 17th Energy Level
NA114,300.00 kJ/mol
52737
122200
9.3.3 18th Energy Level
NA125,300.00 kJ/mol
58570
134810
9.4.3 19th Energy Level
NA134,700.00 kJ/mol
64702
148700
10.1.2 20th Energy Level
NA144,300.00 kJ/mol
80400
171200
10.1.7 21st Energy Level
NA157,700.00 kJ/mol
87000
179100
10.1.10 22nd Energy Level
NA166,090.00 kJ/mol
93400
184900
10.1.13 23rd Energy Level
10.2.4 24th Energy Level
10.2.7 25th Energy Level
10.2.10 26th Energy Level
10.3.3 27th Energy Level
10.3.6 28th Energy Level
10.4.2 29th Energy Level
11.1.2 30th Energy Level
11.2 Electrochemical Equivalent
3.21 g/amp-hr0.32 g/amp-hr
0.16812
8.3209
11.5 Electron Work Function
11.8 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Anti Corrosion, Chemical Stability, Ionization, Radioactive Isotopes, Solubility
12 Atomic
12.1 Atomic Number
13.2 Electron Configuration
[Rn] 5f13 7s2
[Ar] 3d5 4s1
13.3 Crystal Structure
Not Known
Body Centered Cubic (BCC)
13.3.1 Crystal Lattice
13.4 Atom
13.4.1 Number of Protons
13.8.2 Number of Neutrons
13.9.3 Number of Electrons
13.10 Radius of an Atom
13.10.1 Atomic Radius
13.10.4 Covalent Radius
13.11.3 Van der Waals Radius
246.00 pm200.00 pm
139
348
13.13 Atomic Weight
258.00 amu52.00 amu
6.94
294
13.14 Atomic Volume
NA7.23 cm3/mol
1.39
71.07
13.15 Adjacent Atomic Numbers
13.15.1 Previous Element
13.15.2 Next Element
13.16 Valence Electron Potential
13.18 Lattice Constant
NA291.00 pm
228.58
891.25
13.20 Lattice Angles
13.21 Lattice C/A Ratio
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
14.2.1 Density When Liquid (at m.p.)
14.5 Tensile Strength
15.2 Viscosity
15.3 Vapor Pressure
15.3.1 Vapor Pressure at 1000 K
15.3.4 Vapor Pressure at 2000 K
NA774.00 (Pa)
2.62E-10
774
15.4 Elasticity properties
15.4.1 Shear Modulus
15.4.2 Bulk Modulus
15.5.1 Young's Modulus
15.7 Poisson Ratio
15.9 Other Mechanical Properties
16 Magnetic
16.1 Magnetic Characteristics
16.1.1 Specific Gravity
16.1.3 Magnetic Ordering
Unknown
Antiferromagnetic
16.1.5 Permeability
16.2.2 Susceptibility
16.3 Electrical Properties
16.3.1 Electrical Property
16.3.2 Resistivity
16.3.6 Electrical Conductivity
NA0.08 106/cm Ω
0.00666
0.63
16.4.1 Electron Affinity
18 Thermal
18.1 Specific Heat
18.4 Molar Heat Capacity
NA23.35 J/mol·K
16.443
62.7
18.6 Thermal Conductivity
19.2 Critical Temperature
19.3 Thermal Expansion
20.5 Enthalpy
20.5.1 Enthalpy of Vaporization
NA348.80 kJ/mol
7.32
799.1
20.7.1 Enthalpy of Fusion
20.7.3 Enthalpy of Atomization
20.11 Standard Molar Entropy
NA23.80 J/mol.K
9.5
198.1