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Praseodymium Nickel Comparison


Nickel Praseodymium comparison


Periodic Table

Symbol
Pr   
Ni   

Group Number
Not Available   
10   
8

Period Number
6   
4   

Block
f block   
d block   

Element Family
Lanthanide   
Transition Metal   

CAS Number
7440100   
99+
7440020   
99+

Space Group Name
P63/mmc   
Fm_ 3m   

Space Group Number
194.00   
5
225.00   
2

Facts

Interesting Facts
  • Praseodymium metal is synthetically produced metal.
  • Praseodymium is used as possible fuel for radioactive generators.
  
  • Zinc metal found (obtain) in many forms like granules, foil, dust and in a powder form.
  • After iron, Zinc metal the second most abundant element in the earth crust.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Found in Minerals, Mining, Ores of Minerals   

History
  
  

Who Discovered
Not Available   
Axel Fredrik Cronstedt   

Discovery
In 1885   
In 1751   

Abundance
  
  

Abundance In Universe
2 * 10-7 %   
22
6 * 10-3 %   
4

Abundance In Sun
~0.0000001 %   
26
~0.008 %   
3

Abundance In Meteorites
0.00 %   
40
1.30 %   
3

Abundance In Earth's Crust
0.00 %   
27
0.01 %   
15

Abundance In Oceans
0.00 %   
39
0.00 %   
13

Abundance In Humans
Not Available   
0.00 %   
14

Uses

Uses & Benefits
  • The main use of Praseodymium include alloys. Praseodymium –Magnesium alloy is used in aircraft engines due to its high strength.
  • This metal is also used while making a permanent magnets.
  
  • It has corrosion resistance and hence it is used to plate other metals.
  • Its alloys are very useful; Nichrome alloy is used in the hot coil of toasters and electric oven.
  

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

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys   

Biological Properties
  
  

Toxicity
Moderately Toxic   
Toxic   

Present in Human Body
No   
Yes   

In Blood
Not Available   
0.05 Blood/mg dm-3   
17

In Bone
Not Available   
0.70 p.p.m.   
18

Physical Properties

Melting Point
935.00 °C   
99+
1,453.00 °C   
31

Boiling Point
3,130.00 °C   
27
2,732.00 °C   
38

Appearance
  
  

Physical State
Solid   
Solid   

Color
Grayish White   
Silver   

Luster
Metallic   
Metallic   

Hardness
  
  

Mohs Hardness
Not Available   
4.00   
10

Brinell Hardness
481.00 MPa   
24
667.00 MPa   
18

Vickers Hardness
400.00 MPa   
25
638.00 MPa   
16

Speed of Sound
2,280.00 m/s   
40
4,900.00 m/s   
12

Optical Properties
  
  

Reflectivity
Not Available   
72.00 %   
9

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
Pr   
Ni   

Isotopes
  
  

Known Isotopes
31   
8
25   
14

Electronegativity
  
  

Pauling Electronegativity
1.13   
99+
1.91   
10

Sanderson Electronegativity
Not Available   
1.94   
10

Allred Rochow Electronegativity
1.07   
32
1.75   
3

Allen Electronegativity
Not Available   
1.88   
6

Electropositivity
  
  

Pauling Electropositivity
2.87   
12
2.09   
99+

Ionization Energies
  
  

1st Energy Level
527.00 kJ/mol   
99+
737.10 kJ/mol   
25

2nd Energy Level
1,020.00 kJ/mol   
99+
1,753.00 kJ/mol   
25

3rd Energy Level
2,086.00 kJ/mol   
99+
3,395.00 kJ/mol   
17

4th Energy Level
3,761.00 kJ/mol   
99+
5,300.00 kJ/mol   
15

5th Energy Level
5,551.00 kJ/mol   
29
7,339.00 kJ/mol   
15

6th Energy Level
Not Available   
10,400.00 kJ/mol   
9

7th Energy level
Not Available   
12,800.00 kJ/mol   
10

8th Energy Level
Not Available   
15,600.00 kJ/mol   
10

9th Energy Level
Not Available   
18,600.00 kJ/mol   
10

10th Energy Level
Not Available   
21,670.00 kJ/mol   
14

11th Energy Level
Not Available   
30,970.00 kJ/mol   
7

12th Energy Level
Not Available   
34,000.00 kJ/mol   
7

13th Energy Level
Not Available   
37,100.00 kJ/mol   
7

14th Energy Level
Not Available   
41,500.00 kJ/mol   
8

15th Energy Level
Not Available   
44,800.00 kJ/mol   
10

16th Energy Level
Not Available   
48,100.00 kJ/mol   
12

17th Energy Level
Not Available   
55,101.00 kJ/mol   
11

18th Energy Level
Not Available   
58,570.00 kJ/mol   
12

19th Energy Level
Not Available   
148,700.00 kJ/mol   
1

20th Energy Level
Not Available   
159,000.00 kJ/mol   
3

21st Energy Level
Not Available   
169,400.00 kJ/mol   
3

22nd Energy Level
Not Available   
182,700.00 kJ/mol   
2

23rd Energy Level
Not Available   
194,000.00 kJ/mol   
2

Electrochemical Equivalent
1.75 g/amp-hr   
40
1.10 g/amp-hr   
99+

Electron Work Function
2.70 eV   
99+
5.15 eV   
2

Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes   
Anti Corrosion, Ionization, Radioactive Isotopes   

Atomic Properties

Atomic Number
59   
99+
28   
99+

Electron Configuration
[Xe] 4f3 6s2   
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1   

Crystal Structure
Hexagonal Close Packed (HCP)   
Face Centered Cubic (FCC)   

Crystal Lattice
HCP-Crystal-Structure-of-Praseodymium.jpg#100   
FCC-Crystal-Structure-of-Nickel.jpg#100   

Atom
  
  

Number of Protons
59   
99+
28   
99+

Number of Neutrons
82   
99+
31   
99+

Number of Electrons
59   
99+
28   
99+

Radius of an Atom
  
  

Atomic Radius
182.00 pm   
11
124.00 pm   
99+

Covalent Radius
203.00 pm   
9
124.00 pm   
99+

Van der Waals Radius
239.00 pm   
14
163.00 pm   
40

Atomic Weight
140.91 amu   
99+
58.69 amu   
99+

Atomic Volume
20.80 cm3/mol   
15
6.59 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Cerium
  
Cobalt
  

Next Element
Neodymium
  
Copper
  

Valence Electron Potential
42.64 (-eV)   
99+
42.00 (-eV)   
99+

Lattice Constant
367.25 pm   
29
352.40 pm   
99+

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

Lattice C/A Ratio
1.61   
4
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
6.77 g/cm3   
99+
8.91 g/cm3   
99+

Density When Liquid (at m.p.)
6.50 g/cm3   
39
7.81 g/cm3   
29

Tensile Strength
Not Available   
345.00 MPa   
11

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 1000 K
0.00 (Pa)   
25
0.00 (Pa)   
31

Vapor Pressure at 2000 K
13.20 (Pa)   
7
19.50 (Pa)   
6

Elasticity properties
  
  

Shear Modulus
14.80 GPa   
39
76.00 GPa   
12

Bulk Modulus
28.80 GPa   
40
180.00 GPa   
9

Young's Modulus
37.30 GPa   
99+
200.00 GPa   
11

Poisson Ratio
0.28   
16
0.31   
13

Other Mechanical Properties
Ductile, Malleable   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
6.77   
99+
8.90   
33

Magnetic Ordering
Paramagnetic   
Ferromagnetic   

Permeability
Not Available   
0.00 H/m   
2

Susceptibility
Not Available   
600.00   
2

Electrical Properties
  
  

Electrical Property
Conductor   
Conductor   

Resistivity
0.70 nΩ·m   
99+
69.30 nΩ·m   
39

Electrical Conductivity
0.01 106/cm Ω   
99+
0.14 106/cm Ω   
13

Electron Affinity
50.00 kJ/mol   
21
112.00 kJ/mol   
6

Thermal Properties

Specific Heat
0.19 J/(kg K)   
32
0.44 J/(kg K)   
13

Molar Heat Capacity
27.20 J/mol·K   
18
26.07 J/mol·K   
31

Thermal Conductivity
12.50 W/m·K   
99+
90.90 W/m·K   
18

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
6.70 µm/(m·K)   
99+
13.40 µm/(m·K)   
28

Enthalpy
  
  

Enthalpy of Vaporization
296.80 kJ/mol   
29
371.80 kJ/mol   
20

Enthalpy of Fusion
6.89 kJ/mol   
99+
17.57 kJ/mol   
14

Enthalpy of Atomization
368.00 kJ/mol   
24
422.60 kJ/mol   
17

Standard Molar Entropy
73.20 J/mol.K   
10
29.90 J/mol.K   
99+

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