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Palladium vs Lawrencium

Palladium
Lawrencium
Lawrencium vs Palladium


Periodic Table
Symbol
Pd  
Lr  
Group Number
10  
8
3  
15
Period Number
5  
7  
Block
d block  
d block  
Element Family
Transition Metal  
Actinide  
CAS Number
7440053  
99+
22537195  
15
Space Group Name
Fm_ 3m  
-  
Space Group Number
225.00  
3
225.00  
3
Facts
Interesting Facts
  • 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
  
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  
Sources
Ores of metals  
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining  
History
  
  
Who Discovered
William Hyde Wollaston  
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research  
Discovery
In 1803  
In 1961–1971  
Abundance
  
  
Abundance In Universe
0.00 %  
23
0.00 %  
40
Abundance In Sun
0.00 %  
24
-  
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
-  
Abundance In Humans
0.00 %  
24
-  
Uses
Uses & Benefits
  • 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.
  
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  
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  
37
0.00 Blood/mg dm-3  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
1,554.90 °C  
22
1,627.00 °C  
20
Boiling Point
2,963.00 °C  
34
0.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silver  
Silver  
Luster
Metallic  
Unknown Luster  
Hardness
  
  
Mohs Hardness
4.75  
9
-  
Brinell Hardness
320.00 MPa  
40
500.00 MPa  
28
Vickers Hardness
121.00 MPa  
99+
500.00 MPa  
35
Speed of Sound
3,070.00 m/s  
38
2,760.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.72  
25
1.30  
99+
Reflectivity
84.00 %  
5
65.00 %  
18
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Pd  
Lr  
Isotopes
  
  
Known Isotopes
38  
1
10  
28
Electronegativity
  
  
Pauling Electronegativity
2.20  
5
1.30  
33
Sanderson Electronegativity
2.20  
8
1.30  
25
Allred Rochow Electronegativity
1.35  
22
1.30  
25
Mulliken-Jaffe Electronegativity
2.20  
6
1.30  
33
Allen Electronegativity
1.59  
25
1.30  
40
Electropositivity
  
  
Pauling Electropositivity
1.80  
99+
2.00  
99+
Ionization Energies
  
  
1st Energy Level
520.23 kJ/mol  
99+
470.00 kJ/mol  
99+
2nd Energy Level
7,298.22 kJ/mol  
2
1,428.00 kJ/mol  
99+
3rd Energy Level
11,815.13 kJ/mol  
3
2,228.00 kJ/mol  
99+
4th Energy Level
870.00 kJ/mol  
99+
4,910.00 kJ/mol  
31
5th Energy Level
8,044.00 kJ/mol  
13
4,780.00 kJ/mol  
99+
6th Energy Level
8,044.00 kJ/mol  
33
4,780.00 kJ/mol  
99+
7th Energy level
8,040.00 kJ/mol  
27
4,780.00 kJ/mol  
99+
8th Energy Level
8,040.00 kJ/mol  
27
4,780.00 kJ/mol  
99+
9th Energy Level
8,040.00 kJ/mol  
24
4,780.00 kJ/mol  
99+
10th Energy Level
8,040.00 kJ/mol  
28
5,800.00 kJ/mol  
99+
11th Energy Level
8,040.00 kJ/mol  
27
5,800.00 kJ/mol  
99+
12th Energy Level
8,040.00 kJ/mol  
99+
47,800.00 kJ/mol  
22
13th Energy Level
5,310.00 kJ/mol  
99+
4,780.00 kJ/mol  
99+
14th Energy Level
804.40 kJ/mol  
99+
1,186.00 kJ/mol  
99+
15th Energy Level
80,400.00 kJ/mol  
16
47,800.00 kJ/mol  
99+
16th Energy Level
804.40 kJ/mol  
99+
470.00 kJ/mol  
99+
17th Energy Level
804.40 kJ/mol  
33
1,186.00 kJ/mol  
15
18th Energy Level
8,045.00 kJ/mol  
22
4,780.00 kJ/mol  
99+
19th Energy Level
804.40 kJ/mol  
30
1,186.00 kJ/mol  
12
20th Energy Level
804.00 kJ/mol  
23
860.00 kJ/mol  
17
21st Energy Level
804.40 kJ/mol  
99+
1,186.00 kJ/mol  
27
22nd Energy Level
804.00 kJ/mol  
18
388.00 kJ/mol  
99+
23rd Energy Level
804.40 kJ/mol  
99+
1,180.00 kJ/mol  
32
24th Energy Level
804.40 kJ/mol  
14
546.10 kJ/mol  
99+
25th Energy Level
804.40 kJ/mol  
12
0.00 kJ/mol  
99+
26th Energy Level
804.40 kJ/mol  
12
594.70 kJ/mol  
99+
27th Energy Level
804.40 kJ/mol  
11
470.00 kJ/mol  
99+
28th Energy Level
804.40 kJ/mol  
17
478.00 kJ/mol  
99+
29th Energy Level
804.40 kJ/mol  
16
580.00 kJ/mol  
99+
30th Energy Level
804.00 kJ/mol  
12
0.00 kJ/mol  
99+
Electrochemical Equivalent
1.99 g/amp-hr  
34
3.23 g/amp-hr  
12
Electron Work Function
5.12 eV  
7
4.90 eV  
12
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Solubility  
Ionization, Radioactive Isotopes  
Atomic
Atomic Number
46  
99+
103  
15
Electron Configuration
[Kr] 4d10  
[Rn] 5f14 7s2 7p1  
Crystal Structure
Face Centered Cubic (FCC)  
Hexagonal Close Packed (HCP)  
Crystal Lattice
FCC-Crystal-Structure-of-Palladium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
46  
99+
103  
15
Number of Neutrons
60  
99+
157  
8
Number of Electrons
46  
99+
103  
15
Radius of an Atom
  
  
Atomic Radius
137.00 pm  
99+
162.00 pm  
28
Covalent Radius
139.00 pm  
99+
162.00 pm  
31
Van der Waals Radius
163.00 pm  
99+
246.00 pm  
12
Atomic Weight
106.42 amu  
99+
266.00 amu  
12
Atomic Volume
8.90 cm3/mol  
99+
35.10 cm3/mol  
7
Adjacent Atomic Numbers
  
  
Previous Element
Rhodium
  
Nobelium
  
Next Element
Silver
  
Rutherfordium
  
Valence Electron Potential
33.00 (-eV)  
99+
0.00 (-eV)  
99+
Lattice Constant
389.07 pm  
28
530.00 pm  
14
Lattice Angles
π/2, π/2, π/2  
-  
Lattice C/A Ratio
1.56  
99+
1.60  
22
Mechanical
Density
  
  
Density At Room Temperature
12.02 g/cm3  
31
15.00 g/cm3  
22
Density When Liquid (at m.p.)
10.38 g/cm3  
38
15.60 g/cm3  
20
Tensile Strength
550.00 MPa  
8
80.00 MPa  
29
Viscosity
0.00  
14
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
29
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
99+
0.00 (Pa)  
37
Elasticity properties
  
  
Shear Modulus
44.00 GPa  
17
30.00 GPa  
27
Bulk Modulus
180.00 GPa  
9
15.00 GPa  
99+
Young's Modulus
121.00 GPa  
18
210.00 GPa  
10
Poisson Ratio
0.39  
5
0.32  
12
Other Mechanical Properties
Ductile, Malleable, Weldable  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
12.02  
33
15.60  
22
Magnetic Ordering
Diamagnetic  
-  
Permeability
0.00 H/m  
18
0.00 H/m  
13
Susceptibility
0.00  
27
0.00  
23
Electrical Properties
  
  
Electrical Property
Conductor  
-  
Resistivity
105.40 nΩ·m  
29
8.37 nΩ·m  
99+
Electrical Conductivity
0.10 106/cm Ω  
27
0.00 106/cm Ω  
99+
Electron Affinity
54.23 kJ/mol  
21
50.00 kJ/mol  
26
Thermal
Specific Heat
0.24 J/(kg K)  
23
0.22 J/(kg K)  
29
Molar Heat Capacity
25.98 J/mol·K  
99+
27.00 J/mol·K  
29
Thermal Conductivity
71.80 W/m·K  
23
0.00 W/m·K  
99+
Critical Temperature
1,825.00 K  
26
1,323.00 K  
99+
Thermal Expansion
11.80 µm/(m·K)  
99+
8.50 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
376.60 kJ/mol  
28
341.90 kJ/mol  
37
Enthalpy of Fusion
16.74 kJ/mol  
18
-  
Enthalpy of Atomization
393.30 kJ/mol  
29
580.00 kJ/mol  
14
Standard Molar Entropy
37.60 J/mol.K  
99+
54.80 J/mol.K  
35
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