Nickel vs Molybdenum
Periodic Table
Symbol
Ni
Mo
Group Number
10
8
6
12
Period Number
4
5
Block
d block
d block
Element Family
Transition Metal
Transition Metal
CAS Number
7440020
99+
7439987
99+
Space Group Name
Fm_ 3m
Im_ 3m
Space Group Number
225.00
2
229.00
1
Facts
Interesting Facts
- 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.
- Molybdenum is highly reactive metal, hence not found free in nature .
- Till 18th century Molybdenum element were often mistaken as a carbon or Lead.
Sources
Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Axel Fredrik Cronstedt
Carl Wilhelm Scheele
Discovery
In 1751
In 1778
Abundance
Abundance In Universe
6 * 10-3 %
4
5 * 10-7 %
19
Abundance In Sun
~0.008 %
3
~0.0000009 %
19
Abundance In Meteorites
1.30 %
3
0.00 %
24
Abundance In Earth's Crust
0.01 %
15
0.00 %
39
Abundance In Oceans
0.00 %
13
0.00 %
9
Abundance In Humans
0.00 %
14
0.00 %
14
Uses
Uses & Benefits
- 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.
- Its alloys are used to make engine parts, drills, saw blade, etc.
- Lubricant additive made up of Molybdenum disulfide is commonly used in the industry. It is also used as a catalyst.
Industrial Uses
Automobile Industry, Electrical Industry, Electronic Industry
Aerospace Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
NA
Other Uses
Alloys
Alloys
Biological Properties
Toxicity
Toxic
Toxic
Present in Human Body
Yes
Yes
In Blood
0.05 Blood/mg dm-3
17
0.00 Blood/mg dm-3
31
In Bone
0.70 p.p.m.
18
0.70 p.p.m.
18
Physical Properties
Melting Point
1,453.00 °C
31
2,617.00 °C
5
Boiling Point
2,732.00 °C
38
4,612.00 °C
9
Appearance
Physical State
Solid
Solid
Color
Silver
Gray
Luster
Metallic
Metallic
Hardness
Mohs Hardness
4.00
10
5.50
7
Brinell Hardness
667.00 MPa
18
1,370.00 MPa
7
Vickers Hardness
638.00 MPa
16
1,400.00 MPa
6
Speed of Sound
4,900.00 m/s
12
5,400.00 m/s
6
Optical Properties
Reflectivity
72.00 %
9
58.00 %
15
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
Ni
Mo
Isotopes
Known Isotopes
25
14
25
14
Electronegativity
Pauling Electronegativity
1.91
10
2.16
5
Sanderson Electronegativity
1.94
10
1.15
19
Allred Rochow Electronegativity
1.75
3
1.30
24
Allen Electronegativity
1.88
6
2.16
3
Electropositivity
Pauling Electropositivity
2.09
99+
1.84
99+
Ionization Energies
1st Energy Level
737.10 kJ/mol
25
684.30 kJ/mol
37
2nd Energy Level
1,753.00 kJ/mol
25
1,560.00 kJ/mol
37
3rd Energy Level
3,395.00 kJ/mol
17
2,618.00 kJ/mol
99+
4th Energy Level
5,300.00 kJ/mol
15
4,480.00 kJ/mol
26
5th Energy Level
7,339.00 kJ/mol
15
5,257.00 kJ/mol
32
6th Energy Level
10,400.00 kJ/mol
9
6,640.80 kJ/mol
22
7th Energy level
12,800.00 kJ/mol
10
12,125.00 kJ/mol
13
8th Energy Level
15,600.00 kJ/mol
10
13,860.00 kJ/mol
16
9th Energy Level
18,600.00 kJ/mol
10
15,835.00 kJ/mol
16
10th Energy Level
21,670.00 kJ/mol
14
17,980.00 kJ/mol
18
11th Energy Level
30,970.00 kJ/mol
7
20,190.00 kJ/mol
17
12th Energy Level
34,000.00 kJ/mol
7
22,219.00 kJ/mol
15
13th Energy Level
37,100.00 kJ/mol
7
26,930.00 kJ/mol
13
14th Energy Level
41,500.00 kJ/mol
8
29,196.00 kJ/mol
13
15th Energy Level
44,800.00 kJ/mol
10
52,490.00 kJ/mol
7
16th Energy Level
48,100.00 kJ/mol
12
55,000.00 kJ/mol
8
17th Energy Level
55,101.00 kJ/mol
11
61,400.00 kJ/mol
9
18th Energy Level
58,570.00 kJ/mol
12
67,700.00 kJ/mol
9
19th Energy Level
148,700.00 kJ/mol
1
74,000.00 kJ/mol
9
20th Energy Level
159,000.00 kJ/mol
3
80,400.00 kJ/mol
10
21st Energy Level
169,400.00 kJ/mol
3
87,000.00 kJ/mol
9
22nd Energy Level
182,700.00 kJ/mol
2
93,400.00 kJ/mol
7
23rd Energy Level
194,000.00 kJ/mol
2
98,420.00 kJ/mol
6
24th Energy Level
Not Available
104,400.00 kJ/mol
2
25th Energy Level
Not Available
121,900.00 kJ/mol
1
26th Energy Level
Not Available
127,700.00 kJ/mol
1
27th Energy Level
Not Available
133,800.00 kJ/mol
1
28th Energy Level
Not Available
139,800.00 kJ/mol
1
29th Energy Level
Not Available
148,100.00 kJ/mol
1
30th Energy Level
Not Available
154,500.00 kJ/mol
1
Electrochemical Equivalent
1.10 g/amp-hr
99+
0.89 g/amp-hr
99+
Electron Work Function
5.15 eV
2
4.60 eV
12
Other Chemical Properties
Anti Corrosion, Ionization, Radioactive Isotopes
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility
Atomic Properties
Atomic Number
28
99+
42
99+
Electron Configuration
[Ar] 3d8 4s2 Or [Ar] 3d9 4s1
[Kr] 4d5 5s1
Crystal Structure
Face Centered Cubic (FCC)
Body Centered Cubic (BCC)
Crystal Lattice
FCC-Crystal-Structure-of-Nickel.jpg#100
BCC-Crystal-Structure-.jpg#100
Atom
Number of Protons
28
99+
42
99+
Number of Neutrons
31
99+
54
99+
Number of Electrons
28
99+
42
99+
Radius of an Atom
Atomic Radius
124.00 pm
99+
139.00 pm
39
Covalent Radius
124.00 pm
99+
154.00 pm
32
Van der Waals Radius
163.00 pm
40
200.00 pm
28
Atomic Weight
58.69 amu
99+
95.95 amu
99+
Atomic Volume
6.59 cm3/mol
99+
9.40 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
42.00 (-eV)
99+
88.60 (-eV)
13
Lattice Constant
352.40 pm
99+
314.70 pm
99+
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
8.91 g/cm3
99+
10.28 g/cm3
36
Density When Liquid (at m.p.)
7.81 g/cm3
29
9.33 g/cm3
20
Tensile Strength
345.00 MPa
11
324.00 MPa
13
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
0.00 (Pa)
31
Not Available
Vapor Pressure at 2000 K
19.50 (Pa)
6
0.00 (Pa)
26
Elasticity properties
Shear Modulus
76.00 GPa
12
126.00 GPa
8
Bulk Modulus
180.00 GPa
9
230.00 GPa
6
Young's Modulus
200.00 GPa
11
329.00 GPa
6
Poisson Ratio
0.31
13
0.31
13
Other Mechanical Properties
Ductile
Ductile, Weldable
Magnetic Properties
Magnetic Characteristics
Specific Gravity
8.90
33
10.22
27
Magnetic Ordering
Ferromagnetic
Paramagnetic
Permeability
0.00 H/m
2
Not Available
Susceptibility
600.00
2
Not Available
Electrical Properties
Electrical Property
Conductor
Semiconductor
Resistivity
69.30 nΩ·m
39
53.40 nΩ·m
99+
Electrical Conductivity
0.14 106/cm Ω
13
0.19 106/cm Ω
11
Electron Affinity
112.00 kJ/mol
6
71.90 kJ/mol
14
Thermal Properties
Specific Heat
0.44 J/(kg K)
13
0.25 J/(kg K)
21
Molar Heat Capacity
26.07 J/mol·K
31
24.06 J/mol·K
99+
Thermal Conductivity
90.90 W/m·K
18
138.00 W/m·K
12
Critical Temperature
Not Available
Not Available
Thermal Expansion
13.40 µm/(m·K)
28
4.80 µm/(m·K)
99+
Enthalpy
Enthalpy of Vaporization
371.80 kJ/mol
20
594.10 kJ/mol
8
Enthalpy of Fusion
17.57 kJ/mol
14
27.61 kJ/mol
5
Enthalpy of Atomization
422.60 kJ/mol
17
653.00 kJ/mol
7
Standard Molar Entropy
29.90 J/mol.K
99+
28.70 J/mol.K
99+
|
||
|
||
|
