1 Periodic Table
1.1 Symbol
1.2 Group Number
1.4 Period Number
1.8 Block
1.9 Element Family
Actinide
Transition Metal
1.10 CAS Number
74401117440031
7429905
54386242
1.13 Space Group Name
1.14 Space Group Number
3 Facts
3.1 Interesting Facts
- Mendelevium metal is synthetically produced metal.
- Mendelevium metal has been produced in only trace amount.
- Niobium metal was used to get called Columbium in past.
- Niobium metal found freely in nature (abundance).
3.2 Sources
Bombarding Einsteinium with Helium Ions
By-product of Tin Extraction, Found in Minerals, Mining, Ores of Minerals
3.3 History
3.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Charles Hatchett
3.3.2 Discovery
3.4 Abundance
3.4.1 Abundance In Universe
3.4.4 Abundance In Sun
~-9999 %~0.0000004 %
1E-08
0.1
3.4.7 Abundance In Meteorites
3.4.10 Abundance In Earth's Crust
3.4.14 Abundance In Oceans
3.4.17 Abundance In Humans
5 Uses
5.1 Uses & Benefits
- Currently known uses of Mendelevium metal are limited to research purpose only.
- Niobium alloys are used in jet engines and rockets and spacecraft, beams and girders for buildings and oil and gas pipelines.
- It is used superconducting magnets in particles accelerators, NMR and MRI equipment.
5.1.1 Industrial Uses
NA
Aerospace Industry, Ammunition Industry, Electrical Industry, Electronic 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
5.2.3 In Blood
0.00 Blood/mg dm-30.01 Blood/mg dm-3
0
1970
5.2.6 In Bone
0.00 p.p.m.0.07 p.p.m.
0
170000
7 Physical
7.1 Melting Point
827.00 °C2,468.00 °C
27
3410
7.3 Boiling Point
7.6 Appearance
7.6.1 Physical State
7.6.2 Color
7.6.3 Luster
7.7 Hardness
7.7.1 Mohs Hardness
7.8.2 Brinell Hardness
7.9.2 Vickers Hardness
8.3 Speed of Sound
8.8 Optical Properties
8.8.1 Refractive Index
8.8.3 Reflectivity
9.3 Allotropes
9.3.1 α Allotropes
Not Available
Not Available
9.3.2 β Allotropes
Not Available
Not Available
9.3.3 γ Allotropes
Not Available
Not Available
10 Chemical
10.1 Chemical Formula
10.2 Isotopes
10.2.1 Known Isotopes
10.4 Electronegativity
10.4.1 Pauling Electronegativity
10.5.3 Sanderson Electronegativity
10.5.7 Allred Rochow Electronegativity
10.6.1 Mulliken-Jaffe Electronegativity
10.6.3 Allen Electronegativity
10.9 Electropositivity
10.9.1 Pauling Electropositivity
10.13 Ionization Energies
10.13.1 1st Energy Level
635.00 kJ/mol652.10 kJ/mol
375.7
26130
10.14.1 2nd Energy Level
1,235.00 kJ/mol1,380.00 kJ/mol
710.2162
28750
10.16.1 3rd Energy Level
2,470.00 kJ/mol2,416.00 kJ/mol
1600
34230
11.1.3 4th Energy Level
3,840.00 kJ/mol3,700.00 kJ/mol
2780
37066
11.1.5 5th Energy Level
NA4,877.00 kJ/mol
4305.2
97510
11.2.1 6th Energy Level
NA9,847.00 kJ/mol
5715.8
105800
11.3.1 7th Energy level
NA12,100.00 kJ/mol
7226.8
114300
11.4.3 8th Energy Level
11.4.6 9th Energy Level
11.5.3 10th Energy Level
11.5.5 11th Energy Level
11.5.8 12th Energy Level
11.6.1 13th Energy Level
12.1.2 14th Energy Level
12.1.6 15th Energy Level
12.1.9 16th Energy Level
12.2.3 17th Energy Level
12.2.5 18th Energy Level
12.2.8 19th Energy Level
12.2.11 20th Energy Level
12.2.13 21st Energy Level
13.1.1 22nd Energy Level
13.1.3 23rd Energy Level
13.2.2 24th Energy Level
13.3.1 25th Energy Level
13.3.3 26th Energy Level
13.4.2 27th Energy Level
13.4.4 28th Energy Level
13.5.2 29th Energy Level
13.5.3 30th Energy Level
13.7 Electrochemical Equivalent
3.21 g/amp-hr0.69 g/amp-hr
0.16812
8.3209
13.9 Electron Work Function
13.11 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
14 Atomic
14.1 Atomic Number
15.2 Electron Configuration
[Rn] 5f13 7s2
[Kr] 4d4 5s1
15.3 Crystal Structure
Not Known
Body Centered Cubic (BCC)
15.3.1 Crystal Lattice
15.4 Atom
15.4.1 Number of Protons
15.7.2 Number of Neutrons
15.7.4 Number of Electrons
15.8 Radius of an Atom
15.8.1 Atomic Radius
15.9.2 Covalent Radius
15.9.4 Van der Waals Radius
246.00 pm200.00 pm
139
348
15.10 Atomic Weight
258.00 amu92.91 amu
6.94
294
15.12 Atomic Volume
NA10.87 cm3/mol
1.39
71.07
15.14 Adjacent Atomic Numbers
15.14.1 Previous Element
15.14.2 Next Element
15.15 Valence Electron Potential
15.18 Lattice Constant
NA330.04 pm
228.58
891.25
15.20 Lattice Angles
15.21 Lattice C/A Ratio
16 Mechanical
16.1 Density
16.1.1 Density At Room Temperature
17.1.2 Density When Liquid (at m.p.)
17.2 Tensile Strength
17.4 Viscosity
17.6 Vapor Pressure
17.6.1 Vapor Pressure at 1000 K
17.7.2 Vapor Pressure at 2000 K
17.8 Elasticity properties
17.8.1 Shear Modulus
17.9.2 Bulk Modulus
17.9.4 Young's Modulus
17.10 Poisson Ratio
17.11 Other Mechanical Properties
Unknown
Ductile, Malleable
18 Magnetic
18.1 Magnetic Characteristics
18.1.1 Specific Gravity
18.2.1 Magnetic Ordering
18.2.2 Permeability
18.2.3 Susceptibility
19.2 Electrical Properties
19.2.1 Electrical Property
19.2.2 Resistivity
19.2.5 Electrical Conductivity
NA0.07 106/cm Ω
0.00666
0.63
19.2.7 Electron Affinity
20 Thermal
20.1 Specific Heat
20.2 Molar Heat Capacity
NA24.60 J/mol·K
16.443
62.7
20.3 Thermal Conductivity
21.2 Critical Temperature
21.5 Thermal Expansion
1.3 Enthalpy
1.3.1 Enthalpy of Vaporization
NA696.60 kJ/mol
7.32
799.1
1.5.1 Enthalpy of Fusion
1.6.2 Enthalpy of Atomization
1.10 Standard Molar Entropy
NA36.40 J/mol.K
9.5
198.1