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Cesium vs Zirconium


Zirconium vs Cesium


Periodic Table

Symbol
Cs   
Zr   

Group Number
1   
17
4   
14

Period Number
6   
5   

Block
s block   
d block   

Element Family
Alkali   
Transition Metal   

CAS Number
7440462   
40
7440677   
23

Space Group Name
Im_ 3m   
P63/mmc   

Space Group Number
229.00   
1
194.00   
5

Facts

Interesting Facts
Not Available   
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  

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   
Martin Heinrich Klaproth   

Discovery
In 1860   
In 1789   

Abundance
  
  

Abundance In Universe
8 * 10-8 %   
24
5 * 10-6 %   
13

Abundance In Sun
~0.0000008 %   
20
~0.000004 %   
16

Abundance In Meteorites
0.00 %   
38
0.00 %   
17

Abundance In Earth's Crust
0.00 %   
35
0.01 %   
14

Abundance In Oceans
0.00 %   
17
0.00 %   
23

Abundance In Humans
0.00 %   
17
0.00 %   
15

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.
  
  • 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.
  

Industrial Uses
Aerospace Industry, Automobile Industry, Electrical Industry, Electronic Industry   
Aerospace Industry, Ammunition Industry   

Medical Uses
NA   
NA   

Other Uses
Alloys   
Alloys, Nuclear Research, Research Purposes   

Biological Properties
  
  

Toxicity
Mildly Toxic   
NA   

Present in Human Body
Yes   
Yes   

In Blood
0.00 Blood/mg dm-3   
28
0.01 Blood/mg dm-3   
21

In Bone
0.05 p.p.m.   
26
0.10 p.p.m.   
23

Physical Properties

Melting Point
28.50 °C   
99+
1,852.00 °C   
15

Boiling Point
678.40 °C   
99+
4,377.00 °C   
11

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery Gold   
Silvery White   

Luster
NA   
Lustrous   

Hardness
  
  

Mohs Hardness
0.20   
25
5.00   
8

Brinell Hardness
0.14 MPa   
99+
638.00 MPa   
19

Vickers Hardness
Not Available   
820.00 MPa   
15

Speed of Sound
Not Available   
3,800.00 m/s   
20

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   
Zr   

Isotopes
  
  

Known Isotopes
36   
3
24   
15

Electronegativity
  
  

Pauling Electronegativity
0.79   
99+
1.33   
30

Sanderson Electronegativity
0.22   
33
0.90   
25

Allred Rochow Electronegativity
0.86   
99+
1.22   
26

Mulliken-Jaffe Electronegativity
0.62   
26
Not Available   

Allen Electronegativity
0.66   
99+
1.32   
34

Electropositivity
  
  

Pauling Electropositivity
3.21   
2
2.67   
24

Ionization Energies
  
  

1st Energy Level
375.70 kJ/mol   
99+
640.10 kJ/mol   
99+

2nd Energy Level
2,234.30 kJ/mol   
8
1,270.00 kJ/mol   
99+

3rd Energy Level
3,400.00 kJ/mol   
16
2,218.00 kJ/mol   
99+

4th Energy Level
Not Available   
3,313.00 kJ/mol   
99+

5th Energy Level
Not Available   
7,752.00 kJ/mol   
10

6th Energy Level
Not Available   
9,500.00 kJ/mol   
15

Electrochemical Equivalent
4.96 g/amp-hr   
3
0.85 g/amp-hr   
99+

Electron Work Function
2.14 eV   
99+
4.05 eV   
26

Other Chemical Properties
Chemical Stability, Corrosion, Ionization, Radioactive Isotopes, Solubility   
Anti Corrosion, Flammable, Ionization, Radioactive Isotopes, Solubility   

Atomic Properties

Atomic Number
55   
99+
40   
99+

Electron Configuration
[Xe] 6s1   
[Kr] 4d2 5s2   

Crystal Structure
Body Centered Cubic (BCC)   
Hexagonal Close Packed (HCP)   

Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
HCP-Crystal-Structure-of-Zirconium.jpg#100   

Atom
  
  

Number of Protons
55   
99+
40   
99+

Number of Neutrons
78   
99+
51   
99+

Number of Electrons
55   
99+
40   
99+

Radius of an Atom
  
  

Atomic Radius
265.00 pm   
1
160.00 pm   
27

Covalent Radius
244.00 pm   
2
175.00 pm   
23

Van der Waals Radius
343.00 pm   
2
200.00 pm   
28

Atomic Weight
132.91 amu   
99+
91.22 amu   
99+

Atomic Volume
71.07 cm3/mol   
1
14.10 cm3/mol   
36

Adjacent Atomic Numbers
  
  

Previous Element
Tin
  
Yttrium
  

Next Element
Barium
  
Niobium
  

Valence Electron Potential
8.62 (-eV)   
99+
80.00 (-eV)   
18

Lattice Constant
614.10 pm   
5
323.20 pm   
99+

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

Lattice C/A Ratio
Not Available   
1.59   
8

Mechanical Properties

Density
  
  

Density At Room Temperature
1.93 g/cm3   
99+
6.52 g/cm3   
99+

Density When Liquid (at m.p.)
1.84 g/cm3   
99+
5.80 g/cm3   
99+

Tensile Strength
Not Available   
330.00 MPa   
12

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
Not Available   
0.00 (Pa)   
21

Elasticity properties
  
  

Shear Modulus
Not Available   
33.00 GPa   
20

Bulk Modulus
1.60 GPa   
99+
91.10 GPa   
17

Young's Modulus
1.70 GPa   
99+
88.00 GPa   
22

Poisson Ratio
Not Available   
0.34   
10

Other Mechanical Properties
Ductile   
Ductile, Malleable   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
1.87   
99+
6.51   
99+

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Semiconductor   
Conductor   

Resistivity
205.00 nΩ·m   
17
421.00 nΩ·m   
11

Electrical Conductivity
0.05 106/cm Ω   
35
0.02 106/cm Ω   
99+

Electron Affinity
45.50 kJ/mol   
25
41.10 kJ/mol   
27

Thermal Properties

Specific Heat
0.24 J/(kg K)   
23
0.27 J/(kg K)   
19

Molar Heat Capacity
32.21 J/mol·K   
4
25.36 J/mol·K   
99+

Thermal Conductivity
35.90 W/m·K   
36
22.60 W/m·K   
99+

Critical Temperature
1,938.00 K   
5
Not Available   

Thermal Expansion
97.00 µm/(m·K)   
1
5.70 µm/(m·K)   
99+

Enthalpy
  
  

Enthalpy of Vaporization
65.90 kJ/mol   
99+
581.60 kJ/mol   
9

Enthalpy of Fusion
2.10 kJ/mol   
99+
20.90 kJ/mol   
11

Enthalpy of Atomization
78.20 kJ/mol   
99+
598.00 kJ/mol   
10

Standard Molar Entropy
85.20 J/mol.K   
3
39.00 J/mol.K   
39

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