Cesium vs Manganese
Periodic Table
Symbol
Cs
Mn
Group Number
1
17
7
11
Period Number
6
4
Block
s block
d block
Element Family
Alkali
Transition Metal
CAS Number
7440462
40
7439965
99+
Space Group Name
Im_ 3m
I_ 43m
Space Group Number
229.00
1
217.00
4
Facts
Interesting Facts
Not Available
- Manganese is an essential trace element in all forms of life.
- Manganese metal oxidizes very easily, but it does not fuse that easily.
Sources
Earth's crust, Found in Minerals, Mining, Ores of Minerals
Found in Minerals, Mining, Ores of Minerals
History
Who Discovered
Robert Bunsen and Gustav Kirchhoff
Johann Gottlieb Gahn
Discovery
In 1860
In 1774
Abundance
Abundance In Universe
8 * 10-8 %
24
8 * 10-4 %
8
Abundance In Sun
~0.0000008 %
20
~0.001 %
8
Abundance In Meteorites
0.00 %
38
0.27 %
8
Abundance In Earth's Crust
0.00 %
35
0.11 %
8
Abundance In Oceans
0.00 %
17
0.00 %
13
Abundance In Humans
0.00 %
17
0.00 %
13
Uses
Uses & Benefits
- The most common use of cesium metal is as a drilling fluid. It is also used in optical glass manufacturing.
- In vacuum tubes and radiation monitor equipment this metal is used as a catalyst promoter.
- This metal is very brittle hence it mostly not used as a pure metal, but its alloys are very useful
- Its alloy Manganese steel is extremely strong and used in railway tracks, safes, prison bars and riffle barrels.
Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry
Automobile Industry, Electrical Industry, Electronic Industry
Medical Uses
NA
NA
Other Uses
Alloys
Alloys
Biological Properties
Toxicity
Mildly Toxic
Toxic
Present in Human Body
Yes
Yes
In Blood
0.00 Blood/mg dm-3
28
0.08 Blood/mg dm-3
14
In Bone
0.05 p.p.m.
26
100.00 p.p.m.
8
Physical Properties
Melting Point
28.50 °C
99+
1,245.00 °C
37
Boiling Point
678.40 °C
99+
1,962.00 °C
99+
Appearance
Physical State
Solid
Solid
Color
Silvery Gold
Silver
Luster
NA
Metallic
Hardness
Mohs Hardness
0.20
25
6.00
6
Brinell Hardness
0.14 MPa
99+
196.00 MPa
99+
Speed of Sound
Not Available
5,150.00 m/s
7
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
Cs
Mn
Isotopes
Known Isotopes
36
3
21
18
Electronegativity
Pauling Electronegativity
0.79
99+
1.55
25
Sanderson Electronegativity
0.22
33
2.20
7
Allred Rochow Electronegativity
0.86
99+
1.60
9
Mulliken-Jaffe Electronegativity
0.62
26
Not Available
Allen Electronegativity
0.66
99+
1.75
15
Electropositivity
Pauling Electropositivity
3.21
2
2.45
29
Ionization Energies
1st Energy Level
375.70 kJ/mol
99+
717.30 kJ/mol
30
2nd Energy Level
2,234.30 kJ/mol
8
1,509.00 kJ/mol
39
3rd Energy Level
3,400.00 kJ/mol
16
3,248.00 kJ/mol
21
4th Energy Level
Not Available
4,940.00 kJ/mol
20
5th Energy Level
Not Available
6,990.00 kJ/mol
17
6th Energy Level
Not Available
9,220.00 kJ/mol
16
7th Energy level
Not Available
11,500.00 kJ/mol
16
8th Energy Level
Not Available
18,770.00 kJ/mol
5
9th Energy Level
Not Available
21,400.00 kJ/mol
6
10th Energy Level
Not Available
23,960.00 kJ/mol
9
11th Energy Level
Not Available
27,590.00 kJ/mol
10
12th Energy Level
Not Available
30,330.00 kJ/mol
10
13th Energy Level
Not Available
33,150.00 kJ/mol
11
14th Energy Level
Not Available
38,880.00 kJ/mol
10
15th Energy Level
Not Available
41,987.00 kJ/mol
13
16th Energy Level
Not Available
109,480.00 kJ/mol
1
17th Energy Level
Not Available
118,100.00 kJ/mol
2
18th Energy Level
Not Available
127,100.00 kJ/mol
3
19th Energy Level
Not Available
138,600.00 kJ/mol
4
20th Energy Level
Not Available
148,500.00 kJ/mol
6
21st Energy Level
Not Available
158,600.00 kJ/mol
6
22nd Energy Level
Not Available
172,500.00 kJ/mol
5
23rd Energy Level
Not Available
181,380.00 kJ/mol
5
Electrochemical Equivalent
4.96 g/amp-hr
3
0.29 g/amp-hr
99+
Electron Work Function
2.14 eV
99+
4.10 eV
25
Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility
Ionization, Radioactive Isotopes
Atomic Properties
Atomic Number
55
99+
25
99+
Electron Configuration
[Xe] 6s1
[Ar] 3d5 4s2
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
55
99+
25
99+
Number of Neutrons
78
99+
30
99+
Number of Electrons
55
99+
25
99+
Radius of an Atom
Atomic Radius
265.00 pm
1
127.00 pm
99+
Covalent Radius
244.00 pm
2
139.00 pm
99+
Van der Waals Radius
343.00 pm
2
200.00 pm
28
Atomic Weight
132.91 amu
99+
54.94 amu
99+
Atomic Volume
71.07 cm3/mol
1
1.39 cm3/mol
99+
Adjacent Atomic Numbers
Valence Electron Potential
8.62 (-eV)
99+
220.00 (-eV)
2
Lattice Constant
614.10 pm
5
891.25 pm
1
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
1.93 g/cm3
99+
7.21 g/cm3
99+
Density When Liquid (at m.p.)
1.84 g/cm3
99+
5.95 g/cm3
99+
Tensile Strength
Not Available
Not Available
Viscosity
Not Available
Not Available
Vapor Pressure
Vapor Pressure at 1000 K
Not Available
0.00 (Pa)
12
Elasticity properties
Bulk Modulus
1.60 GPa
99+
120.00 GPa
14
Young's Modulus
1.70 GPa
99+
198.00 GPa
12
Poisson Ratio
Not Available
Not Available
Other Mechanical Properties
Ductile
NA
Magnetic Properties
Magnetic Characteristics
Specific Gravity
1.87
99+
7.21
99+
Magnetic Ordering
Paramagnetic
Paramagnetic
Electrical Properties
Electrical Property
Semiconductor
Conductor
Resistivity
205.00 nΩ·m
17
1.44 nΩ·m
99+
Electrical Conductivity
0.05 106/cm Ω
35
0.01 106/cm Ω
99+
Electron Affinity
45.50 kJ/mol
25
0.00 kJ/mol
40
Thermal Properties
Specific Heat
0.24 J/(kg K)
23
0.48 J/(kg K)
11
Molar Heat Capacity
32.21 J/mol·K
4
26.32 J/mol·K
29
Thermal Conductivity
35.90 W/m·K
36
7.81 W/m·K
99+
Critical Temperature
1,938.00 K
5
Not Available
Thermal Expansion
97.00 µm/(m·K)
1
21.70 µm/(m·K)
21
Enthalpy
Enthalpy of Vaporization
65.90 kJ/mol
99+
219.70 kJ/mol
99+
Enthalpy of Fusion
2.10 kJ/mol
99+
14.64 kJ/mol
23
Enthalpy of Atomization
78.20 kJ/mol
99+
280.30 kJ/mol
38
Standard Molar Entropy
85.20 J/mol.K
3
32.00 J/mol.K
99+
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