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Californium vs Palladium


Palladium vs Californium


Periodic Table

Symbol
Cf   
Pd   

Group Number
Not Available   
10   
8

Period Number
7   
5   

Block
f block   
d block   

Element Family
Actinide   
Transition Metal   

CAS Number
7440713   
20
7440053   
99+

Space Group Name
P63/mmc   
Fm_ 3m   

Space Group Number
194.00   
5
225.00   
2

Facts

Interesting Facts
  • Californium metal is very harmful and highly radioactive.
  • Californium metal is the heaviest metal.
  
  • 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
Made by Bombarding Curium with Helium Ions   
Ores of metals   

History
  
  

Who Discovered
Lawrence Berkeley National Laboratory   
William Hyde Wollaston   

Discovery
In 1950   
In 1803   

Abundance
  
  

Abundance In Universe
Not Available   
2 * 10-7 %   
22

Abundance In Sun
~-9999 %   
~0.0000003 %   
24

Abundance In Meteorites
Not Available   
0.00 %   
99+

Abundance In Earth's Crust
Not Available   
0.00 %   
99+

Uses

Uses & Benefits
  • Californium metal has a very strong neutron emitter. It is used as a metal detector.
  • It also used as an identifier to check Water and oil layers in oil wells.
  
  • 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
Chemical Industry   
Aerospace Industry, Automobile Industry, Electronic Industry   

Medical Uses
NA   
Dentistry, Pharmaceutical Industry, Surgical Instruments Manufacturing   

Other Uses
Alloys, Nuclear Research   
Coinage, Bullion, Jewellery   

Biological Properties
  
  

Toxicity
Toxic   
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   

Physical Properties

Melting Point
900.00 °C   
99+
1,554.90 °C   
22

Boiling Point
1,470.00 °C   
99+
2,963.00 °C   
33

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silver   
Silver   

Luster
NA   
Metallic   

Hardness
  
  

Mohs Hardness
3.00   
12
4.75   
9

Brinell Hardness
Not Available   
320.00 MPa   
33

Vickers Hardness
Not Available   
121.00 MPa   
36

Speed of Sound
Not Available   
3,070.00 m/s   
26

Optical Properties
  
  

Refractive Index
Not Available   
1.72   
1

Reflectivity
Not Available   
84.00 %   
4

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Cf   
Pd   

Isotopes
  
  

Known Isotopes
20   
19
38   
1

Electronegativity
  
  

Pauling Electronegativity
1.30   
32
2.20   
4

Allred Rochow Electronegativity
1.20   
27
1.35   
21

Allen Electronegativity
Not Available   
1.59   
22

Electropositivity
  
  

Pauling Electropositivity
2.70   
22
1.80   
99+

Ionization Energies
  
  

1st Energy Level
608.00 kJ/mol   
99+
520.23 kJ/mol   
99+

2nd Energy Level
1,206.00 kJ/mol   
99+
7,298.22 kJ/mol   
2

3rd Energy Level
2,267.00 kJ/mol   
99+
11,815.13 kJ/mol   
3

4th Energy Level
3,599.00 kJ/mol   
99+
Not Available   

Electrochemical Equivalent
3.12 g/amp-hr   
15
1.99 g/amp-hr   
30

Electron Work Function
Not Available   
5.12 eV   
3

Other Chemical Properties
Corrosion, Ionization, Radioactive Isotopes, Radioactivity, Solubility   
Chemical Stability, Corrosion, Ionization, Solubility   

Atomic Properties

Atomic Number
98   
20
46   
99+

Electron Configuration
[Rn] 5f10 7s2   
[Kr] 4d10   

Crystal Structure
Double Hexagonal Close Packed (DHCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
DHCP-Crystal-Structure-of-Californium.jpg#100   
FCC-Crystal-Structure-of-Palladium.jpg#100   

Atom
  
  

Number of Protons
98   
20
46   
99+

Number of Neutrons
153   
9
60   
99+

Number of Electrons
98   
20
46   
99+

Radius of an Atom
  
  

Atomic Radius
186.00 pm   
9
137.00 pm   
40

Covalent Radius
Not Available   
139.00 pm   
99+

Van der Waals Radius
Not Available   
163.00 pm   
40

Atomic Weight
251.00 amu   
17
106.42 amu   
99+

Atomic Volume
Not Available   
8.90 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Berkelium
  
Rhodium
  

Next Element
Silver
  

Valence Electron Potential
44.50 (-eV)   
38
33.00 (-eV)   
99+

Lattice Constant
338.00 pm   
99+
389.07 pm   
25

Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
15.10 g/cm3   
21
12.02 g/cm3   
29

Density When Liquid (at m.p.)
Not Available   
10.38 g/cm3   
17

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
27

Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
30

Elasticity properties
  
  

Shear Modulus
Not Available   
44.00 GPa   
17

Bulk Modulus
Not Available   
180.00 GPa   
9

Young's Modulus
Not Available   
121.00 GPa   
16

Poisson Ratio
Not Available   
0.39   
5

Other Mechanical Properties
Malleable, Sectile   
Ductile, Malleable, Weldable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
15.10   
13
12.02   
21

Magnetic Ordering
Paramagnetic   
Diamagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Conductor   

Resistivity
Not Available   
105.40 nΩ·m   
29

Electrical Conductivity
Not Available   
0.10 106/cm Ω   
22

Electron Affinity
Not Available   
54.23 kJ/mol   
17

Thermal Properties

Specific Heat
Not Available   
0.24 J/(kg K)   
23

Molar Heat Capacity
Not Available   
25.98 J/mol·K   
33

Thermal Conductivity
Not Available   
71.80 W/m·K   
23

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
11.80 µm/(m·K)   
33

Enthalpy
  
  

Enthalpy of Vaporization
Not Available   
376.60 kJ/mol   
19

Enthalpy of Fusion
Not Available   
16.74 kJ/mol   
18

Enthalpy of Atomization
Not Available   
393.30 kJ/mol   
22

Standard Molar Entropy
Not Available   
37.60 J/mol.K   
40

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