Home
 Compare Metals

Barium vs Molybdenum

Barium
Molybdenum
Molybdenum vs Barium


Periodic Table
Symbol
Ba  
Mo  
Group Number
2  
16
6  
12
Period Number
6  
5  
Block
s block  
d block  
Element Family
Alkaline Earth  
Transition Metal  
CAS Number
7440393  
99+
7439987  
99+
Space Group Name
Im_ 3m  
Im_ 3m  
Space Group Number
229.00  
1
229.00  
1
Facts
Interesting Facts
  • Barium oxidizes very easily in the air.
  • All toxic compounds of Barium can easily dissolve in water.
  • Barium carbonate is used to produce a Rat poison and its other compound Barium nitrate is used in fireworks to produce green color.
  
  • 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
Earth's crust, Found in Minerals, Mining, Ores of Minerals  
Found in Minerals, Mining, Ores of Minerals  
History
  
  
Who Discovered
Carl Wilhelm Scheele  
Carl Wilhelm Scheele  
Discovery
In 1772  
In 1778  
Abundance
  
  
Abundance In Universe
1 * 10-6 %  
16
5 * 10-7 %  
19
Abundance In Sun
~0.000001 %  
18
~0.0000009 %  
19
Abundance In Meteorites
0.00 %  
20
0.00 %  
24
Abundance In Earth's Crust
0.03 %  
11
0.00 %  
39
Abundance In Oceans
0.00 %  
8
0.00 %  
9
Abundance In Humans
0.00 %  
12
0.00 %  
14
Uses
Uses & Benefits
  • It is sued in chemical paint manufacturing and glass manufacturing.
  • Compounds of this metal are toxic; but still the barium sulfate is insoluble and given to patients suffering from digestive disorder.
  
  • 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
Ammunition Industry, Automobile Industry, Electrical Industry, Electronic Industry  
Aerospace Industry, Electrical Industry, Electronic Industry  
Medical Uses
NA  
NA  
Other Uses
Alloys  
Alloys  
Biological Properties
  
  
Toxicity
Low Toxic  
Toxic  
Present in Human Body
Yes  
Yes  
In Blood
0.07 Blood/mg dm-3  
15
0.00 Blood/mg dm-3  
31
In Bone
70.00 p.p.m.  
9
0.70 p.p.m.  
18
Physical Properties
Melting Point
725.00 °C  
99+
2,617.00 °C  
5
Boiling Point
1,140.00 °C  
99+
4,612.00 °C  
9
Appearance
  
  
Physical State
Solid  
Solid  
Color
Silvery Gray  
Gray  
Luster
NA  
Metallic  
Hardness
  
  
Mohs Hardness
1.25  
19
5.50  
7
Brinell Hardness
Not Available  
1,370.00 MPa  
7
Vickers Hardness
Not Available  
1,400.00 MPa  
6
Speed of Sound
1,620.00 m/s  
99+
5,400.00 m/s  
6
Optical Properties
  
  
Reflectivity
Not Available  
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
Ba  
Mo  
Isotopes
  
  
Known Isotopes
37  
2
25  
14
Electronegativity
  
  
Pauling Electronegativity
0.89  
99+
2.16  
5
Sanderson Electronegativity
0.68  
28
1.15  
19
Allred Rochow Electronegativity
0.97  
38
1.30  
24
Mulliken-Jaffe Electronegativity
0.88  
22
Not Available  
Allen Electronegativity
0.88  
99+
2.16  
3
Electropositivity
  
  
Pauling Electropositivity
3.11  
4
1.84  
99+
Ionization Energies
  
  
1st Energy Level
502.90 kJ/mol  
99+
684.30 kJ/mol  
37
2nd Energy Level
965.20 kJ/mol  
99+
1,560.00 kJ/mol  
37
3rd Energy Level
3,600.00 kJ/mol  
14
2,618.00 kJ/mol  
99+
4th Energy Level
Not Available  
4,480.00 kJ/mol  
26
5th Energy Level
Not Available  
5,257.00 kJ/mol  
32
6th Energy Level
Not Available  
6,640.80 kJ/mol  
22
7th Energy level
Not Available  
12,125.00 kJ/mol  
13
8th Energy Level
Not Available  
13,860.00 kJ/mol  
16
9th Energy Level
Not Available  
15,835.00 kJ/mol  
16
10th Energy Level
Not Available  
17,980.00 kJ/mol  
18
11th Energy Level
Not Available  
20,190.00 kJ/mol  
17
12th Energy Level
Not Available  
22,219.00 kJ/mol  
15
13th Energy Level
Not Available  
26,930.00 kJ/mol  
13
14th Energy Level
Not Available  
29,196.00 kJ/mol  
13
15th Energy Level
Not Available  
52,490.00 kJ/mol  
7
16th Energy Level
Not Available  
55,000.00 kJ/mol  
8
17th Energy Level
Not Available  
61,400.00 kJ/mol  
9
18th Energy Level
Not Available  
67,700.00 kJ/mol  
9
19th Energy Level
Not Available  
74,000.00 kJ/mol  
9
20th Energy Level
Not Available  
80,400.00 kJ/mol  
10
21st Energy Level
Not Available  
87,000.00 kJ/mol  
9
22nd Energy Level
Not Available  
93,400.00 kJ/mol  
7
23rd Energy Level
Not Available  
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
2.56 g/amp-hr  
20
0.89 g/amp-hr  
99+
Electron Work Function
2.70 eV  
99+
4.60 eV  
12
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility  
Anti Corrosion, Ionization, Radioactive Isotopes, Solubility  
Atomic Properties
Atomic Number
56  
99+
42  
99+
Electron Configuration
[Xe] 6s2  
[Kr] 4d5 5s1  
Crystal Structure
Body Centered Cubic (BCC)  
Body Centered Cubic (BCC)  
Crystal Lattice
BCC-Crystal-Structure-.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
56  
99+
42  
99+
Number of Neutrons
81  
99+
54  
99+
Number of Electrons
56  
99+
42  
99+
Radius of an Atom
  
  
Atomic Radius
222.00 pm  
4
139.00 pm  
39
Covalent Radius
215.00 pm  
5
154.00 pm  
32
Van der Waals Radius
268.00 pm  
6
200.00 pm  
28
Atomic Weight
137.33 amu  
99+
95.95 amu  
99+
Atomic Volume
39.24 cm3/mol  
5
9.40 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Cesium
  
Niobium
  
Next Element
Lanthanum
  
Technetium
  
Valence Electron Potential
21.30 (-eV)  
99+
88.60 (-eV)  
13
Lattice Constant
502.80 pm  
15
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
3.51 g/cm3  
99+
10.28 g/cm3  
36
Density When Liquid (at m.p.)
3.34 g/cm3  
99+
9.33 g/cm3  
20
Tensile Strength
Not Available  
324.00 MPa  
13
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Vapor Pressure at 1000 K
7.11 (Pa)  
6
Not Available  
Vapor Pressure at 2000 K
Not Available  
0.00 (Pa)  
26
Elasticity properties
  
  
Shear Modulus
4.90 GPa  
99+
126.00 GPa  
8
Bulk Modulus
9.60 GPa  
99+
230.00 GPa  
6
Young's Modulus
13.00 GPa  
99+
329.00 GPa  
6
Poisson Ratio
Not Available  
0.31  
13
Other Mechanical Properties
NA  
Ductile, Weldable  
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
3.62  
99+
10.22  
27
Magnetic Ordering
Paramagnetic  
Paramagnetic  
Electrical Properties
  
  
Electrical Property
Superconductor  
Semiconductor  
Resistivity
332.00 nΩ·m  
13
53.40 nΩ·m  
99+
Electrical Conductivity
0.03 106/cm Ω  
40
0.19 106/cm Ω  
11
Electron Affinity
13.95 kJ/mol  
36
71.90 kJ/mol  
14
Thermal Properties
Specific Heat
0.20 J/(kg K)  
30
0.25 J/(kg K)  
21
Molar Heat Capacity
28.07 J/mol·K  
12
24.06 J/mol·K  
99+
Thermal Conductivity
18.40 W/m·K  
99+
138.00 W/m·K  
12
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
20.60 µm/(m·K)  
22
4.80 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
140.00 kJ/mol  
99+
594.10 kJ/mol  
8
Enthalpy of Fusion
7.66 kJ/mol  
99+
27.61 kJ/mol  
5
Enthalpy of Atomization
175.70 kJ/mol  
99+
653.00 kJ/mol  
7
Standard Molar Entropy
62.50 J/mol.K  
20
28.70 J/mol.K  
99+
Periodic Table >>
<< All

Compare All Metals

All Metals

All Metals

Compare All Metals

Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!