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Palladium Bohrium Comparison


Bohrium Palladium comparison


Periodic Table

Symbol
Pd  
Bh  

Group Number
10  
8
7  
11

Period Number
5  
7  

Block
d block  
d block  

Element Family
Transition Metal  
Transition Metal  

CAS Number
7440053  
99+
54037148  
12

Space Group Name
Fm_ 3m  
-  

Space Group Number
225.00  
3
276.00  
1

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
  
  • Bohrium metal is also known as Unnilseptium (Uns) and Nielsbohrium (Ns).
  

Sources
Ores of metals  
Found in Minerals, Mining, Synthetically Produced  

History
  
  

Who Discovered
William Hyde Wollaston  
Gesellschaft für Schwerionenforschung  

Discovery
In 1803  
In 1981  

Abundance
  
  

Abundance In Universe
0.00 %  
23
0.00 %  
37

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 Bohrium 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  
Research Purposes  

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
-  

Boiling Point
2,963.00 °C  
34
0.00 °C  
99+

Appearance
  
  

Physical State
Solid  
Solid  

Color
Silver  
-  

Luster
Metallic  
Unknown Luster  

Hardness
  
  

Mohs Hardness
4.75  
9
7.00  
3

Brinell Hardness
320.00 MPa  
40
270.00 MPa  
99+

Vickers Hardness
121.00 MPa  
99+
2,700.00 MPa  
4

Speed of Sound
3,070.00 m/s  
38
2,680.00 m/s  
99+

Optical Properties
  
  

Refractive Index
1.72  
25
1.50  
36

Reflectivity
84.00 %  
5
59.00 %  
24

Allotropes
No  
No  

α Allotropes
-  
-  

β Allotropes
-  
-  

γ Allotropes
-  
-  

Chemical

Chemical Formula
Pd  
Bh  

Isotopes
  
  

Known Isotopes
38  
1
5  
32

Electronegativity
  
  

Pauling Electronegativity
2.20  
5
2.00  
8

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
2.00  
6

Electropositivity
  
  

Pauling Electropositivity
1.80  
99+
2.00  
99+

Ionization Energies
  
  

1st Energy Level
520.23 kJ/mol  
99+
742.90 kJ/mol  
23

2nd Energy Level
7,298.22 kJ/mol  
2
1,688.50 kJ/mol  
31

3rd Energy Level
11,815.13 kJ/mol  
3
2,566.50 kJ/mol  
99+

4th Energy Level
870.00 kJ/mol  
99+
3,598.90 kJ/mol  
99+

5th Energy Level
8,044.00 kJ/mol  
13
4,727.80 kJ/mol  
99+

6th Energy Level
8,044.00 kJ/mol  
33
5,991.70 kJ/mol  
99+

7th Energy level
8,040.00 kJ/mol  
27
7,226.80 kJ/mol  
34

8th Energy Level
8,040.00 kJ/mol  
27
7,100.00 kJ/mol  
33

9th Energy Level
8,040.00 kJ/mol  
24
5,800.00 kJ/mol  
99+

10th Energy Level
8,040.00 kJ/mol  
28
7,100.00 kJ/mol  
35

11th Energy Level
8,040.00 kJ/mol  
27
8,200.00 kJ/mol  
25

12th Energy Level
8,040.00 kJ/mol  
99+
82,700.00 kJ/mol  
4

13th Energy Level
5,310.00 kJ/mol  
99+
7,100.00 kJ/mol  
29

14th Energy Level
804.40 kJ/mol  
99+
8,200.00 kJ/mol  
17

15th Energy Level
80,400.00 kJ/mol  
16
82,000.00 kJ/mol  
14

16th Energy Level
804.40 kJ/mol  
99+
71,100.00 kJ/mol  
20

17th Energy Level
804.40 kJ/mol  
33
820.00 kJ/mol  
31

18th Energy Level
8,045.00 kJ/mol  
22
8,200.00 kJ/mol  
20

19th Energy Level
804.40 kJ/mol  
30
820.80 kJ/mol  
28

20th Energy Level
804.00 kJ/mol  
23
820.00 kJ/mol  
21

21st Energy Level
804.40 kJ/mol  
99+
8,200.00 kJ/mol  
11

22nd Energy Level
804.00 kJ/mol  
18
820.00 kJ/mol  
16

23rd Energy Level
804.40 kJ/mol  
99+
8,200.00 kJ/mol  
8

24th Energy Level
804.40 kJ/mol  
14
820.00 kJ/mol  
12

25th Energy Level
804.40 kJ/mol  
12
820.00 kJ/mol  
10

26th Energy Level
804.40 kJ/mol  
12
820.00 kJ/mol  
10

27th Energy Level
804.40 kJ/mol  
11
820.00 kJ/mol  
9

28th Energy Level
804.40 kJ/mol  
17
820.00 kJ/mol  
15

29th Energy Level
804.40 kJ/mol  
16
820.00 kJ/mol  
14

30th Energy Level
804.00 kJ/mol  
12
820.00 kJ/mol  
10

Electrochemical Equivalent
1.99 g/amp-hr  
34
3.00 g/amp-hr  
21

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+
107  
11

Electron Configuration
[Kr] 4d10  
[Rn] 5f14 6d5 7s2  

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+
107  
11

Number of Neutrons
60  
99+
155  
9

Number of Electrons
46  
99+
107  
11

Radius of an Atom
  
  

Atomic Radius
137.00 pm  
99+
128.00 pm  
99+

Covalent Radius
139.00 pm  
99+
141.00 pm  
99+

Van der Waals Radius
163.00 pm  
99+
0.00 pm  
99+

Atomic Weight
106.42 amu  
99+
270.00 amu  
8

Atomic Volume
8.90 cm3/mol  
99+
23.70 cm3/mol  
14

Adjacent Atomic Numbers
  
  

Previous Element
Rhodium
  

Next Element
Silver
  
Hassium
  

Valence Electron Potential
33.00 (-eV)  
99+
27.20 (-eV)  
99+

Lattice Constant
389.07 pm  
28
-  

Lattice Angles
π/2, π/2, π/2  
-  

Lattice C/A Ratio
1.56  
99+
1.57  
99+

Mechanical

Density
  
  

Density At Room Temperature
12.02 g/cm3  
31
37.10 g/cm3  
3

Density When Liquid (at m.p.)
10.38 g/cm3  
38
37.10 g/cm3  
3

Tensile Strength
550.00 MPa  
8
152.00 MPa  
24

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
28.00 GPa  
32

Bulk Modulus
180.00 GPa  
9
37.00 GPa  
99+

Young's Modulus
121.00 GPa  
18
0.00 GPa  
99+

Poisson Ratio
0.39  
5
0.35  
9

Other Mechanical Properties
Ductile, Malleable, Weldable  
-  

Magnetic

Magnetic Characteristics
  
  

Specific Gravity
12.02  
33
37.00  
5

Magnetic Ordering
Diamagnetic  
-  

Permeability
0.00 H/m  
18
0.00 H/m  
11

Susceptibility
0.00  
27
0.00  
24

Electrical Properties
  
  

Electrical Property
Conductor  
-  

Resistivity
105.40 nΩ·m  
29
6.50 nΩ·m  
99+

Electrical Conductivity
0.10 106/cm Ω  
27
0.00 106/cm Ω  
99+

Electron Affinity
54.23 kJ/mol  
21
-  

Thermal

Specific Heat
0.24 J/(kg K)  
23
0.10 J/(kg K)  
99+

Molar Heat Capacity
25.98 J/mol·K  
99+
37.10 J/mol·K  
2

Thermal Conductivity
71.80 W/m·K  
23
37.00 W/m·K  
36

Critical Temperature
1,825.00 K  
26
1,323.00 K  
99+

Thermal Expansion
11.80 µm/(m·K)  
99+
14.30 µm/(m·K)  
28

Enthalpy
  
  

Enthalpy of Vaporization
376.60 kJ/mol  
28
270.50 kJ/mol  
99+

Enthalpy of Fusion
16.74 kJ/mol  
18
-  

Enthalpy of Atomization
393.30 kJ/mol  
29
-  

Standard Molar Entropy
37.60 J/mol.K  
99+
57.00 J/mol.K  
30

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