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Mendelevium vs Palladium

Mendelevium
Palladium
Palladium vs Mendelevium


Periodic Table
Symbol
Md  
Pd  
Group Number
3  
15
10  
8
Period Number
7  
5  
Block
f block  
d block  
Element Family
Actinide  
Transition Metal  
CAS Number
7440111  
99+
7440053  
99+
Space Group Name
-  
Fm_ 3m  
Space Group Number
194.00  
7
225.00  
3
Facts
Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  
  • Palladium alloys are used for Jewelry contains (95% Palladium and 5% Ruthenium)
  • In the late 1800s, Palladium metal used have more economical value than the Platinum metal.
  • Palladium element is known as a good catalyst
  
Sources
Bombarding Einsteinium with Helium Ions  
Ores of metals  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
William Hyde Wollaston  
Discovery
In 1955  
In 1803  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
23
Abundance In Sun
-  
0.00 %  
24
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
-  
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
0.00 %  
24
0.00 %  
24
Uses
Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  
  • Mostly palladium metal is used in catalytic converters. In electronic industry it is used in ceramic capacitors of mobile and computer.
  • It is used in jewellery and dental fillings and crowns.
  
Industrial Uses
-  
Aerospace Industry, Automobile Industry, Electronic Industry  
Medical Uses
-  
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing  
Other Uses
-  
Coinage, Bullion, Jewellery  
Biological Properties
  
  
Toxicity
-  
Toxic  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
827.00 °C  
99+
1,554.90 °C  
22
Boiling Point
0.00 °C  
99+
2,963.00 °C  
34
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Silver  
Luster
Metallic  
Metallic  
Hardness
  
  
Mohs Hardness
-  
4.75  
9
Brinell Hardness
350.00 MPa  
36
320.00 MPa  
40
Vickers Hardness
0.00 MPa  
99+
121.00 MPa  
99+
Speed of Sound
2,680.00 m/s  
99+
3,070.00 m/s  
38
Optical Properties
  
  
Refractive Index
1.30  
99+
1.72  
25
Reflectivity
66.00 %  
17
84.00 %  
5
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Md  
Pd  
Isotopes
  
  
Known Isotopes
16  
23
38  
1
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
2.20  
5
Sanderson Electronegativity
1.30  
25
2.20  
8
Allred Rochow Electronegativity
1.20  
28
1.35  
22
Mulliken-Jaffe Electronegativity
1.30  
33
2.20  
6
Allen Electronegativity
1.30  
40
1.59  
25
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
1.80  
99+
Ionization Energies
  
  
1st Energy Level
635.00 kJ/mol  
99+
520.23 kJ/mol  
99+
2nd Energy Level
1,235.00 kJ/mol  
99+
7,298.22 kJ/mol  
2
3rd Energy Level
2,470.00 kJ/mol  
99+
11,815.13 kJ/mol  
3
4th Energy Level
3,840.00 kJ/mol  
99+
870.00 kJ/mol  
99+
5th Energy Level
6,350.00 kJ/mol  
36
8,044.00 kJ/mol  
13
6th Energy Level
6,350.00 kJ/mol  
99+
8,044.00 kJ/mol  
33
7th Energy level
6,350.00 kJ/mol  
99+
8,040.00 kJ/mol  
27
8th Energy Level
6,350.00 kJ/mol  
99+
8,040.00 kJ/mol  
27
9th Energy Level
6,350.00 kJ/mol  
99+
8,040.00 kJ/mol  
24
10th Energy Level
6,350.00 kJ/mol  
99+
8,040.00 kJ/mol  
28
11th Energy Level
6,400.00 kJ/mol  
99+
8,040.00 kJ/mol  
27
12th Energy Level
60,100.00 kJ/mol  
16
8,040.00 kJ/mol  
99+
13th Energy Level
6,350.00 kJ/mol  
37
5,310.00 kJ/mol  
99+
14th Energy Level
1,150.00 kJ/mol  
99+
804.40 kJ/mol  
99+
15th Energy Level
63,500.00 kJ/mol  
37
80,400.00 kJ/mol  
16
16th Energy Level
635.00 kJ/mol  
99+
804.40 kJ/mol  
99+
17th Energy Level
1,107.00 kJ/mol  
21
804.40 kJ/mol  
33
18th Energy Level
6,350.00 kJ/mol  
39
8,045.00 kJ/mol  
22
19th Energy Level
635.00 kJ/mol  
99+
804.40 kJ/mol  
30
20th Energy Level
635.00 kJ/mol  
40
804.00 kJ/mol  
23
21st Energy Level
6,350.00 kJ/mol  
13
804.40 kJ/mol  
99+
22nd Energy Level
635.00 kJ/mol  
34
804.00 kJ/mol  
18
23rd Energy Level
6,350.00 kJ/mol  
13
804.40 kJ/mol  
99+
24th Energy Level
635.00 kJ/mol  
36
804.40 kJ/mol  
14
25th Energy Level
635.00 kJ/mol  
38
804.40 kJ/mol  
12
26th Energy Level
635.00 kJ/mol  
37
804.40 kJ/mol  
12
27th Energy Level
635.00 kJ/mol  
39
804.40 kJ/mol  
11
28th Energy Level
635.00 kJ/mol  
99+
804.40 kJ/mol  
17
29th Energy Level
635.00 kJ/mol  
99+
804.40 kJ/mol  
16
30th Energy Level
635.00 kJ/mol  
40
804.00 kJ/mol  
12
Electrochemical Equivalent
3.21 g/amp-hr  
13
1.99 g/amp-hr  
34
Electron Work Function
3.89 eV  
37
5.12 eV  
7
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Corrosion, Ionization, Solubility  
Atomic
Atomic Number
101  
17
46  
99+
Electron Configuration
[Rn] 5f13 7s2  
[Kr] 4d10  
Crystal Structure
Not Known  
Face Centered Cubic (FCC)  
Crystal Lattice
Unknown-Crystal-Structure-of-Mendelevium.jpg#100  
FCC-Crystal-Structure-of-Palladium.jpg#100  
Atom
  
  
Number of Protons
101  
17
46  
99+
Number of Neutrons
157  
8
60  
99+
Number of Electrons
101  
17
46  
99+
Radius of an Atom
  
  
Atomic Radius
175.00 pm  
21
137.00 pm  
99+
Covalent Radius
175.00 pm  
25
139.00 pm  
99+
Van der Waals Radius
246.00 pm  
12
163.00 pm  
99+
Atomic Weight
258.00 amu  
14
106.42 amu  
99+
Atomic Volume
19.90 cm3/mol  
32
8.90 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Fermium
  
Rhodium
  
Next Element
Nobelium
  
Silver
  
Valence Electron Potential
63.70 (-eV)  
23
33.00 (-eV)  
99+
Lattice Constant
-  
389.07 pm  
28
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.58  
36
1.56  
99+
Mechanical
Density
  
  
Density At Room Temperature
10.30 g/cm3  
38
12.02 g/cm3  
31
Density When Liquid (at m.p.)
10.30 g/cm3  
39
10.38 g/cm3  
38
Tensile Strength
80.00 MPa  
29
550.00 MPa  
8
Viscosity
0.00  
25
0.00  
14
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
29
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
32.00 GPa  
24
44.00 GPa  
17
Bulk Modulus
0.00 GPa  
99+
180.00 GPa  
9
Young's Modulus
12.00 GPa  
99+
121.00 GPa  
18
Poisson Ratio
0.30  
14
0.39  
5
Other Mechanical Properties
-  
Ductile, Malleable, Weldable  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
13.50  
29
12.02  
33
Magnetic Ordering
-  
Diamagnetic  
Permeability
0.00 H/m  
11
0.00 H/m  
18
Susceptibility
0.00  
24
0.00  
27
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
0.63 nΩ·m  
99+
105.40 nΩ·m  
29
Electrical Conductivity
0.00 106/cm Ω  
99+
0.10 106/cm Ω  
27
Electron Affinity
50.00 kJ/mol  
26
54.23 kJ/mol  
21
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.24 J/(kg K)  
23
Molar Heat Capacity
27.00 J/mol·K  
29
25.98 J/mol·K  
99+
Thermal Conductivity
0.00 W/m·K  
99+
71.80 W/m·K  
23
Critical Temperature
1,100.00 K  
99+
1,825.00 K  
26
Thermal Expansion
11.60 µm/(m·K)  
99+
11.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
380.50 kJ/mol  
26
376.60 kJ/mol  
28
Enthalpy of Fusion
-  
16.74 kJ/mol  
18
Enthalpy of Atomization
410.80 kJ/mol  
25
393.30 kJ/mol  
29
Standard Molar Entropy
37.40 J/mol.K  
99+
37.60 J/mol.K  
99+
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