Symbol
Md
  
Pt
  
Group Number
Not Available
  
Period Number
7
  
6
  
Block
f block
  
d block
  
Element Family
Actinide
  
Transition Metal
  
Space Group Name
Not Available
  
Fm_ 3m
  
Space Group Number
Not Available
  
Interesting Facts
- Mendelevium metal is synthetically produced metal.
- Mendelevium metal has been produced in only trace amount.
  
- Platinum is the rarest metal from the Precious metal categories..
- Commercially Platinum is produced as a byproduct in ores of nickel.
  
Sources
Bombarding Einsteinium with Helium Ions
  
Mining, Ores of metals, Ores of Minerals
  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory
  
Antonio de Ulloa
  
Discovery
In 1955
  
In 1735
  
Abundance
  
  
Abundance In Universe
Not Available
  
Abundance In Sun
~-9999 %
  
~0.0000009 %
  
19
Abundance In Meteorites
Not Available
  
Abundance In Earth's Crust
Not Available
  
Uses & Benefits
- Currently known uses of Mendelevium metal are limited to research purpose only.
  
- Platinum metal is mainly used in jewellery.
-
Platinum is used as an industrial catalyst in production of nitric acid, silicone and benzene.
  
Industrial Uses
NA
  
Aerospace Industry, Chemical Industry
  
Medical Uses
NA
  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing
  
Other Uses
NA
  
Alloys, Bullion, Coinage, Jewellery, Sculptures, Statues
  
Biological Properties
  
  
Toxicity
Unknown
  
Non Toxic
  
Present in Human Body
No
  
No
  
In Blood
0.00 Blood/mg dm-3
  
37
Not Available
  
In Bone
0.00 p.p.m.
  
36
Not Available
  
Melting Point
1,772.00 °C
  
16
Boiling Point
Not Available
  
3,827.00 °C
  
15
Appearance
  
  
Physical State
Solid
  
Solid
  
Color
Unknown
  
Silvery White
  
Luster
Metallic
  
Metallic
  
Hardness
  
  
Mohs Hardness
Not Available
  
Brinell Hardness
Not Available
  
Vickers Hardness
Not Available
  
Speed of Sound
Not Available
  
2,800.00 m/s
  
29
Optical Properties
  
  
Reflectivity
Not Available
  
Allotropes
No
  
No
  
α Allotropes
Not Available
  
Not Available
  
β Allotropes
Not Available
  
Not Available
  
γ Allotropes
Not Available
  
Not Available
  
Chemical Formula
Md
  
Pt
  
Isotopes
  
  
Electronegativity
  
  
Pauling Electronegativity
Allred Rochow Electronegativity
Allen Electronegativity
Not Available
  
Electropositivity
  
  
Pauling Electropositivity
Ionization Energies
  
  
1st Energy Level
635.00 kJ/mol
  
99+
870.00 kJ/mol
  
10
2nd Energy Level
1,235.00 kJ/mol
  
99+
1,791.00 kJ/mol
  
21
3rd Energy Level
2,470.00 kJ/mol
  
99+
Not Available
  
4th Energy Level
3,840.00 kJ/mol
  
99+
Not Available
  
Electrochemical Equivalent
3.21 g/amp-hr
  
12
1.82 g/amp-hr
  
35
Electron Work Function
Not Available
  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
  
Chemical Stability, Anti Corrosion, Ionization
  
Electron Configuration
[Rn] 5f13 7s2
  
[Xe] 4f14 5d9 6s1
  
Crystal Structure
Not Known
  
Face Centered Cubic (FCC)
  
Crystal Lattice
Unknown-Crystal-Structure-of-Mendelevium.jpg#100
  
FCC-Crystal-Structure-of-Platinum.jpg#100
  
Atom
  
  
Radius of an Atom
  
  
Atomic Radius
Not Available
  
Covalent Radius
Not Available
  
Atomic Volume
Not Available
  
9.09 cm3/mol
  
99+
Adjacent Atomic Numbers
  
  
Valence Electron Potential
Not Available
  
392.42 (-eV)
  
1
Lattice Constant
Not Available
  
Lattice Angles
NA
  
π/2, π/2, π/2
  
Lattice C/A Ratio
Not Available
  
Not Available
  
Density
  
  
Density At Room Temperature
Not Available
  
21.45 g/cm
3
  
11
Density When Liquid (at m.p.)
Not Available
  
Tensile Strength
Not Available
  
Viscosity
Not Available
  
Not Available
  
Vapor Pressure
  
  
Vapor Pressure at 2000 K
Not Available
  
Elasticity properties
  
  
Shear Modulus
Not Available
  
Bulk Modulus
Not Available
  
Young's Modulus
Not Available
  
Poisson Ratio
Not Available
  
Other Mechanical Properties
Unknown
  
Ductile, Malleable
  
Magnetic Characteristics
  
  
Specific Gravity
Not Available
  
Magnetic Ordering
Unknown
  
Paramagnetic
  
Permeability
Not Available
  
Electrical Properties
  
  
Electrical Property
Unknown
  
Conductor
  
Resistivity
Not Available
  
105.00 nΩ·m
  
30
Electrical Conductivity
Not Available
  
0.10 10
6/cm Ω
  
21
Electron Affinity
Not Available
  
205.30 kJ/mol
  
2
Specific Heat
Not Available
  
0.13 J/(kg K)
  
39
Molar Heat Capacity
Not Available
  
25.86 J/mol·K
  
35
Thermal Conductivity
Not Available
  
71.60 W/m·K
  
24
Critical Temperature
Not Available
  
Not Available
  
Thermal Expansion
Not Available
  
8.80 µm/(m·K)
  
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available
  
510.50 kJ/mol
  
11
Enthalpy of Fusion
Not Available
  
19.70 kJ/mol
  
12
Enthalpy of Atomization
Not Available
  
565.00 kJ/mol
  
11
Standard Molar Entropy
Not Available
  
41.60 J/mol.K
  
36