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Zirconium Cesium Comparison

Zirconium
Cesium
Cesium Zirconium comparison


Periodic Table
Symbol
Zr   
Cs   
Group Number
4   
14
1   
17
Period Number
5   
6   
Block
d block   
s block   
Element Family
Transition Metal   
Alkali   
CAS Number
7440677   
23
7440462   
40
Space Group Name
P63/mmc   
Im_ 3m   
Space Group Number
194.00   
5
229.00   
1
Facts
Interesting Facts
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
Not Available   
Sources
Found in Minerals, Mining, Ores of Minerals   
Earth's crust, Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Martin Heinrich Klaproth   
Robert Bunsen and Gustav Kirchhoff   
Discovery
In 1789   
In 1860   
Abundance
  
  
Abundance In Universe
5 * 10-6 %   
13
8 * 10-8 %   
24
Abundance In Sun
~0.000004 %   
16
~0.0000008 %   
20
Abundance In Meteorites
0.00 %   
17
0.00 %   
38
Abundance In Earth's Crust
0.01 %   
14
0.00 %   
35
Abundance In Oceans
0.00 %   
23
0.00 %   
17
Abundance In Humans
0.00 %   
15
0.00 %   
17
Uses
Uses & Benefits
  • As this metal does not absorb neutrons; It is used in nuclear power stations.
  • Its oxide is used in ultra strong ceramics. It is also used in manufacturing Crucibles.
  
  • 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.
  
Industrial Uses
Aerospace Industry, Ammunition Industry   
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Medical Uses
NA   
NA   
Other Uses
Alloys, Nuclear Research, Research Purposes   
Alloys   
Biological Properties
  
  
Toxicity
NA   
Mildly Toxic   
Present in Human Body
Yes   
Yes   
In Blood
0.01 Blood/mg dm-3   
21
0.00 Blood/mg dm-3   
28
In Bone
0.10 p.p.m.   
23
0.05 p.p.m.   
26
Physical Properties
Melting Point
1,852.00 °C   
15
28.50 °C   
99+
Boiling Point
4,377.00 °C   
11
678.40 °C   
99+
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Silvery Gold   
Luster
Lustrous   
NA   
Hardness
  
  
Mohs Hardness
5.00   
8
0.20   
25
Brinell Hardness
638.00 MPa   
19
0.14 MPa   
99+
Vickers Hardness
820.00 MPa   
15
Not Available   
Speed of Sound
3,800.00 m/s   
20
Not Available   
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
Zr   
Cs   
Isotopes
  
  
Known Isotopes
24   
15
36   
3
Electronegativity
  
  
Pauling Electronegativity
1.33   
30
0.79   
99+
Sanderson Electronegativity
0.90   
25
0.22   
33
Allred Rochow Electronegativity
1.22   
26
0.86   
99+
Mulliken-Jaffe Electronegativity
Not Available   
0.62   
26
Allen Electronegativity
1.32   
34
0.66   
99+
Electropositivity
  
  
Pauling Electropositivity
2.67   
24
3.21   
2
Ionization Energies
  
  
1st Energy Level
640.10 kJ/mol   
99+
375.70 kJ/mol   
99+
2nd Energy Level
1,270.00 kJ/mol   
99+
2,234.30 kJ/mol   
8
3rd Energy Level
2,218.00 kJ/mol   
99+
3,400.00 kJ/mol   
16
4th Energy Level
3,313.00 kJ/mol   
99+
Not Available   
5th Energy Level
7,752.00 kJ/mol   
10
Not Available   
6th Energy Level
9,500.00 kJ/mol   
15
Not Available   
Electrochemical Equivalent
0.85 g/amp-hr   
99+
4.96 g/amp-hr   
3
Electron Work Function
4.05 eV   
26
2.14 eV   
99+
Other Chemical Properties
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
40   
99+
55   
99+
Electron Configuration
[Kr] 4d2 5s2   
[Xe] 6s1   
Crystal Structure
Hexagonal Close Packed (HCP)   
Body Centered Cubic (BCC)   
Crystal Lattice
HCP-Crystal-Structure-of-Zirconium.jpg#100   
BCC-Crystal-Structure-.jpg#100   
Atom
  
  
Number of Protons
40   
99+
55   
99+
Number of Neutrons
51   
99+
78   
99+
Number of Electrons
40   
99+
55   
99+
Radius of an Atom
  
  
Atomic Radius
160.00 pm   
27
265.00 pm   
1
Covalent Radius
175.00 pm   
23
244.00 pm   
2
Van der Waals Radius
200.00 pm   
28
343.00 pm   
2
Atomic Weight
91.22 amu   
99+
132.91 amu   
99+
Atomic Volume
14.10 cm3/mol   
36
71.07 cm3/mol   
1
Adjacent Atomic Numbers
  
  
Previous Element
Yttrium
  
Tin
  
Next Element
Niobium
  
Barium
  
Valence Electron Potential
80.00 (-eV)   
18
8.62 (-eV)   
99+
Lattice Constant
323.20 pm   
99+
614.10 pm   
5
Lattice Angles
π/2, π/2, 2 π/3   
π/2, π/2, π/2   
Lattice C/A Ratio
1.59   
8
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
6.52 g/cm3   
99+
1.93 g/cm3   
99+
Density When Liquid (at m.p.)
5.80 g/cm3   
99+
1.84 g/cm3   
99+
Tensile Strength
330.00 MPa   
12
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 2000 K
0.00 (Pa)   
21
Not Available   
Elasticity properties
  
  
Shear Modulus
33.00 GPa   
20
Not Available   
Bulk Modulus
91.10 GPa   
17
1.60 GPa   
99+
Young's Modulus
88.00 GPa   
22
1.70 GPa   
99+
Poisson Ratio
0.34   
10
Not Available   
Other Mechanical Properties
Ductile, Malleable   
Ductile   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
6.51   
99+
1.87   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Conductor   
Semiconductor   
Resistivity
421.00 nΩ·m   
11
205.00 nΩ·m   
17
Electrical Conductivity
0.02 106/cm Ω   
99+
0.05 106/cm Ω   
35
Electron Affinity
41.10 kJ/mol   
27
45.50 kJ/mol   
25
Thermal Properties
Specific Heat
0.27 J/(kg K)   
19
0.24 J/(kg K)   
23
Molar Heat Capacity
25.36 J/mol·K   
99+
32.21 J/mol·K   
4
Thermal Conductivity
22.60 W/m·K   
99+
35.90 W/m·K   
36
Critical Temperature
Not Available   
1,938.00 K   
5
Thermal Expansion
5.70 µm/(m·K)   
99+
97.00 µm/(m·K)   
1
Enthalpy
  
  
Enthalpy of Vaporization
581.60 kJ/mol   
9
65.90 kJ/mol   
99+
Enthalpy of Fusion
20.90 kJ/mol   
11
2.10 kJ/mol   
99+
Enthalpy of Atomization
598.00 kJ/mol   
10
78.20 kJ/mol   
99+
Standard Molar Entropy
39.00 J/mol.K   
39
85.20 J/mol.K   
3
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