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Tin vs Rhodium

Tin
Rhodium
Rhodium vs Tin


Periodic Table
Symbol
Sn   
Rh   
Group Number
14   
4
9   
9
Period Number
5   
5   
Block
p block   
d block   
Element Family
Post-​Transition   
Transition Metal   
CAS Number
7440315   
99+
7440166   
99+
Space Group Name
I41/amd   
Fm_ 3m   
Space Group Number
141.00   
7
225.00   
2
Facts
Interesting Facts
  • In the list of most abundant element Tin is ranked 49th.
  • Tin metal does not react with water as well as does not corrode in it.
  
  • Rhodium is the rarest element out of all non-radioactive metals on the earth .
  • Rhodium is one of the most durable and hard metal, which also have high reflectance.
  
Sources
Found in Minerals, Mining   
Earth's crust, Found As a By-product, Found in Minerals, Mining   
History
  
  
Who Discovered
Unknown   
William Hyde Wollaston   
Discovery
Before 3500 BC   
In 1804   
Abundance
  
  
Abundance In Universe
4 * 10-7 %   
20
6 * 10-8 %   
26
Abundance In Sun
~0.0000009 %   
19
~0.0000002 %   
25
Abundance In Meteorites
0.00 %   
24
0.00 %   
36
Abundance In Earth's Crust
0.00 %   
34
0.00 %   
99+
Abundance In Oceans
0.00 %   
26
Not Available   
Abundance In Humans
0.00 %   
13
Not Available   
Uses
Uses & Benefits
  • Tin-niobium alloy is used for producing superconducting magnets.
  • Tin salt known as a tin II chloride, it is used as a mordant and as a reducing agent for dyeing calico and silk.
  
  • Rhodium metal is mainly used in catalytic converters for cars as it reduces nitrogen oxides in exhaust gases.
  • It is used as an industrial catalyst for nitric acid, acetic acid, hydrogenation reaction, etc.
  
Industrial Uses
Automobile Industry, Chemical Industry, Food Industry   
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Medical Uses
Dentistry   
NA   
Other Uses
NA   
Alloys   
Biological Properties
  
  
Toxicity
Non Toxic   
NA   
Present in Human Body
Yes   
No   
In Blood
0.38 Blood/mg dm-3   
10
Not Available   
In Bone
1.40 p.p.m.   
16
Not Available   
Physical Properties
Melting Point
231.90 °C   
99+
1,966.00 °C   
12
Boiling Point
2,270.00 °C   
99+
3,727.00 °C   
17
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery White   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
1.50   
18
6.00   
6
Brinell Hardness
50.00 MPa   
99+
980.00 MPa   
9
Vickers Hardness
Not Available   
1,100.00 MPa   
9
Speed of Sound
2,730.00 m/s   
32
4,700.00 m/s   
15
Optical Properties
  
  
Reflectivity
Not Available   
84.00 %   
4
Allotropes
Yes   
No   
α Allotropes
Grey Tin (alpha Tin, Tin Pest)   
Not Available   
β Allotropes
White Tin (Beta Tin)   
Not Available   
γ Allotropes
Rhombic Tin (gamma Tin)   
Not Available   
Chemical Properties
Chemical Formula
Sn   
Rh   
Isotopes
  
  
Known Isotopes
35   
4
16   
23
Electronegativity
  
  
Pauling Electronegativity
1.96   
8
2.28   
3
Sanderson Electronegativity
1.49   
15
Not Available   
Allred Rochow Electronegativity
1.72   
4
1.45   
16
Mulliken-Jaffe Electronegativity
2.21   
3
Not Available   
Allen Electronegativity
1.82   
11
1.56   
24
Electropositivity
  
  
Pauling Electropositivity
2.04   
99+
1.72   
99+
Ionization Energies
  
  
1st Energy Level
708.60 kJ/mol   
33
719.70 kJ/mol   
29
2nd Energy Level
1,411.80 kJ/mol   
99+
1,740.00 kJ/mol   
26
3rd Energy Level
2,943.00 kJ/mol   
30
2,997.00 kJ/mol   
27
4th Energy Level
3,930.30 kJ/mol   
99+
Not Available   
5th Energy Level
7,456.00 kJ/mol   
13
Not Available   
Electrochemical Equivalent
1.11 g/amp-hr   
99+
1.28 g/amp-hr   
99+
Electron Work Function
4.42 eV   
16
4.98 eV   
6
Other Chemical Properties
Ionization, Solubility   
Anti Corrosion, Ionization, Radioactive Isotopes   
Atomic Properties
Atomic Number
50   
99+
45   
99+
Electron Configuration
[Kr] 4d10 5s2 5p2   
[Kr] 4d8 5s1   
Crystal Structure
Tetragonal (TETR)   
Face Centered Cubic (FCC)   
Crystal Lattice
TETR-Crystal-Structure-of-Tin.jpg#100   
FCC-Crystal-Structure-of-Rhodium.jpg#100   
Atom
  
  
Number of Protons
50   
99+
45   
99+
Number of Neutrons
69   
99+
58   
99+
Number of Electrons
50   
99+
45   
99+
Radius of an Atom
  
  
Atomic Radius
140.00 pm   
38
134.00 pm   
99+
Covalent Radius
139.00 pm   
99+
142.00 pm   
99+
Van der Waals Radius
217.00 pm   
23
200.00 pm   
28
Atomic Weight
118.71 amu   
99+
102.91 amu   
99+
Atomic Volume
16.30 cm3/mol   
32
8.30 cm3/mol   
99+
Adjacent Atomic Numbers
  
  
Previous Element
Indium
  
Ruthenium
  
Next Element
Cesium
  
Palladium
  
Valence Electron Potential
83.50 (-eV)   
14
64.00 (-eV)   
22
Lattice Constant
583.18 pm   
7
380.34 pm   
27
Lattice Angles
π/2, π/2, π/2   
π/2, π/2, π/2   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
7.37 g/cm3   
99+
12.41 g/cm3   
28
Density When Liquid (at m.p.)
6.99 g/cm3   
34
10.70 g/cm3   
14
Tensile Strength
Not Available   
951.00 MPa   
5
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)   
17
Not Available   
Vapor Pressure at 2000 K
Not Available   
0.02 (Pa)   
19
Elasticity properties
  
  
Shear Modulus
18.00 GPa   
36
150.00 GPa   
6
Bulk Modulus
58.00 GPa   
20
275.00 GPa   
5
Young's Modulus
50.00 GPa   
36
380.00 GPa   
5
Poisson Ratio
0.36   
8
0.26   
22
Other Mechanical Properties
Ductile, Malleable   
Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
7.31   
99+
12.41   
20
Magnetic Ordering
Diamagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Superconductor   
Conductor   
Resistivity
115.00 nΩ·m   
28
43.30 nΩ·m   
99+
Electrical Conductivity
0.09 106/cm Ω   
23
0.21 106/cm Ω   
8
Electron Affinity
107.30 kJ/mol   
8
109.70 kJ/mol   
7
Thermal Properties
Specific Heat
0.23 J/(kg K)   
28
0.24 J/(kg K)   
22
Molar Heat Capacity
27.11 J/mol·K   
20
24.98 J/mol·K   
99+
Thermal Conductivity
66.80 W/m·K   
25
150.00 W/m·K   
9
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
22.00 µm/(m·K)   
20
8.20 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
290.40 kJ/mol   
32
495.40 kJ/mol   
12
Enthalpy of Fusion
7.03 kJ/mol   
99+
21.76 kJ/mol   
10
Enthalpy of Atomization
301.30 kJ/mol   
35
556.50 kJ/mol   
12
Standard Molar Entropy
51.20 J/mol.K   
29
31.50 J/mol.K   
99+
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