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Ruthenium Neodymium Comparison


Neodymium Ruthenium comparison


Periodic Table

Symbol
Ru   
Nd   

Group Number
8   
10
1   
17

Period Number
5   
6   

Block
d block   
f block   

Element Family
Transition Metal   
Lanthanide   

CAS Number
7440188   
99+
7440008   
99+

Space Group Name
P63/mmc   
P63/mmc   

Space Group Number
194.00   
5
194.00   
5

Facts

Interesting Facts
  • Ruthenium element has been extracted from used nuclear fuel.
  • Ruthenium metal also produces as a by-product of the Nickel mining.
  
  • Neodymium is not found free in nature, hence it is not a native metal.
  • Neodymium metal found in minerals like Monazite and Bastnaesite.
  

Sources
By-product of Nickel Refining, Found in Minerals, Mining   
Found in Minerals, Mining   

History
  
  

Who Discovered
Karl Ernst Claus   
Carl Auer von Welsbach   

Discovery
In 1844   
In 1885   

Abundance
  
  

Abundance In Universe
4 * 10-7 %   
20
1 * 10-6 %   
16

Abundance In Sun
~0.0000005 %   
22
~0.0000003 %   
24

Abundance In Meteorites
0.00 %   
26
0.00 %   
30

Abundance In Earth's Crust
0.00 %   
99+
0.00 %   
20

Abundance In Oceans
0.00 %   
38
0.00 %   
30

Uses

Uses & Benefits
  • It is used for producing chip resistors and contact.
  • Ruthenium oxide is used to coat the anodes cells for chlorine production in chemical industry. It also works as catalysts for ammonia and acetic acid reaction.
  
  • Neodymium-Iron-boron alloy is used to make permanent magnets.
  • It is used in microphones, Mp3 player, loudspeakers, mobile phones, etc.
  

Industrial Uses
Aerospace Industry, Automobile Industry, Chemical Industry, Electrical Industry, Electronic Industry   
Aerospace Industry, Electrical Industry, Electronic Industry   

Medical Uses
Medical Research   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Low Toxic   
Non Toxic   

Present in Human Body
No   
No   

Physical Properties

Melting Point
2,250.00 °C   
8
1,010.00 °C   
99+

Boiling Point
3,900.00 °C   
14
3,127.00 °C   
28

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silvery White   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
6.50   
5
Not Available   

Brinell Hardness
2,160.00 MPa   
3
265.00 MPa   
35

Vickers Hardness
Not Available   
345.00 MPa   
27

Speed of Sound
5,970.00 m/s   
4
2,330.00 m/s   
38

Optical Properties
  
  

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
Ru   
Nd   

Isotopes
  
  

Known Isotopes
26   
13
30   
9

Electronegativity
  
  

Pauling Electronegativity
2.20   
4
1.14   
99+

Allred Rochow Electronegativity
1.42   
18
1.07   
32

Allen Electronegativity
1.54   
25
Not Available   

Electropositivity
  
  

Pauling Electropositivity
1.80   
99+
2.86   
13

Ionization Energies
  
  

1st Energy Level
710.20 kJ/mol   
32
533.10 kJ/mol   
99+

2nd Energy Level
710.22 kJ/mol   
99+
1,040.00 kJ/mol   
99+

3rd Energy Level
2,747.00 kJ/mol   
37
2,130.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,900.00 kJ/mol   
99+

Electrochemical Equivalent
1.26 g/amp-hr   
99+
1.79 g/amp-hr   
37

Electron Work Function
4.71 eV   
9
3.20 eV   
34

Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Corrosion, Flammable, Ionization   

Atomic Properties

Atomic Number
44   
99+
60   
99+

Electron Configuration
[Kr] 4d7 5s1   
[Xe] 4f4 6s2   

Crystal Structure
Hexagonal Close Packed (HCP)   
Double Hexagonal Close Packed (DHCP)   

Crystal Lattice
rystal-Structure-of-Ruthenium.jpg#100   
DHCP-Crystal-Structure-of-Neodymium.jpg#100   

Atom
  
  

Number of Protons
44   
99+
60   
99+

Number of Neutrons
57   
99+
84   
40

Number of Electrons
44   
99+
60   
99+

Radius of an Atom
  
  

Atomic Radius
134.00 pm   
99+
181.00 pm   
13

Covalent Radius
146.00 pm   
38
201.00 pm   
10

Van der Waals Radius
200.00 pm   
28
229.00 pm   
20

Atomic Weight
101.07 amu   
99+
144.24 amu   
99+

Atomic Volume
8.30 cm3/mol   
99+
20.60 cm3/mol   
18

Adjacent Atomic Numbers
  
  

Previous Element
Technetium
  

Next Element
Rhodium
  
Promethium
  

Valence Electron Potential
64.00 (-eV)   
22
43.40 (-eV)   
99+

Lattice Constant
270.59 pm   
99+
365.80 pm   
30

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

Lattice C/A Ratio
1.58   
11
1.61   
4

Mechanical Properties

Density
  
  

Density At Room Temperature
12.45 g/cm3   
27
7.01 g/cm3   
99+

Density When Liquid (at m.p.)
10.65 g/cm3   
16
6.89 g/cm3   
36

Tensile Strength
Not Available   
Not Available   

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
21

Vapor Pressure at 2000 K
0.00 (Pa)   
23
101.00 (Pa)   
2

Elasticity properties
  
  

Shear Modulus
173.00 GPa   
4
16.30 GPa   
38

Bulk Modulus
220.00 GPa   
7
31.80 GPa   
37

Young's Modulus
447.00 GPa   
3
41.40 GPa   
40

Poisson Ratio
0.30   
14
0.28   
16

Other Mechanical Properties
Ductile, Malleable   
NA   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
12.45   
19
7.00   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Conductor   
NA   

Resistivity
71.00 nΩ·m   
38
643.00 nΩ·m   
6

Electrical Conductivity
0.14 106/cm Ω   
16
0.02 106/cm Ω   
99+

Electron Affinity
101.30 kJ/mol   
10
50.00 kJ/mol   
21

Thermal Properties

Specific Heat
0.24 J/(kg K)   
24
0.19 J/(kg K)   
32

Molar Heat Capacity
24.06 J/mol·K   
99+
27.45 J/mol·K   
17

Thermal Conductivity
117.00 W/m·K   
13
16.50 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
6.40 µm/(m·K)   
99+
9.60 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
567.80 kJ/mol   
10
273.00 kJ/mol   
34

Enthalpy of Fusion
25.50 kJ/mol   
7
7.14 kJ/mol   
99+

Enthalpy of Atomization
603.00 kJ/mol   
9
322.00 kJ/mol   
32

Standard Molar Entropy
28.50 J/mol.K   
99+
71.50 J/mol.K   
13

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