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Zirconium vs Lawrencium


Lawrencium vs Zirconium


Periodic Table

Symbol
Zr   
Lr   

Group Number
4   
14
Not Available   

Period Number
5   
7   

Block
d block   
d block   

Element Family
Transition Metal   
Actinide   

CAS Number
7440677   
23
22537195   
15

Space Group Name
P63/mmc   
Not Available   

Space Group Number
194.00   
5
Not Available   

Facts

Interesting Facts
  • Zirconium metal can resist to weak acids.
  • Zirconium metal reacts with oxygen and nitrogen in the atmosphere.
  
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  

Sources
Found in Minerals, Mining, Ores of Minerals   
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining   

History
  
  

Who Discovered
Martin Heinrich Klaproth   
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research   

Discovery
In 1789   
In 1961–1971   

Abundance
  
  

Abundance In Universe
5 * 10-6 %   
13
Not Available   

Abundance In Sun
~0.000004 %   
16
~-9999 %   

Abundance In Meteorites
0.00 %   
17
Not Available   

Abundance In Earth's Crust
0.01 %   
14
Not Available   

Abundance In Oceans
0.00 %   
23
Not Available   

Abundance In Humans
0.00 %   
15
Not Available   

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.
  
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  

Industrial Uses
Aerospace Industry, Ammunition Industry   
NA   

Medical Uses
NA   
NA   

Other Uses
Alloys, Nuclear Research, Research Purposes   
NA   

Biological Properties
  
  

Toxicity
NA   
Unknown   

Present in Human Body
Yes   
No   

In Blood
0.01 Blood/mg dm-3   
21
0.00 Blood/mg dm-3   
37

In Bone
0.10 p.p.m.   
23
0.00 p.p.m.   
36

Physical Properties

Melting Point
1,852.00 °C   
15
1,627.00 °C   
20

Boiling Point
4,377.00 °C   
11
Not Available   

Appearance
  
  

Physical State
Solid   
Solid   

Color
Silvery White   
Silver   

Luster
Lustrous   
Unknown Luster   

Hardness
  
  

Mohs Hardness
5.00   
8
Not Available   

Brinell Hardness
638.00 MPa   
19
Not Available   

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   
Lr   

Isotopes
  
  

Known Isotopes
24   
15
10   
28

Electronegativity
  
  

Pauling Electronegativity
1.33   
30
Not Available   

Sanderson Electronegativity
0.90   
25
Not Available   

Allred Rochow Electronegativity
1.22   
26
Not Available   

Allen Electronegativity
1.32   
34
Not Available   

Electropositivity
  
  

Pauling Electropositivity
2.67   
24
Not Available   

Ionization Energies
  
  

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

2nd Energy Level
1,270.00 kJ/mol   
99+
1,428.00 kJ/mol   
99+

3rd Energy Level
2,218.00 kJ/mol   
99+
2,228.00 kJ/mol   
99+

4th Energy Level
3,313.00 kJ/mol   
99+
4,910.00 kJ/mol   
21

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+
3.23 g/amp-hr   
11

Electron Work Function
4.05 eV   
26
Not Available   

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

Atomic Properties

Atomic Number
40   
99+
103   
15

Electron Configuration
[Kr] 4d2 5s2   
[Rn] 5f14 7s2 7p1   

Crystal Structure
Hexagonal Close Packed (HCP)   
Hexagonal Close Packed (HCP)   

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

Atom
  
  

Number of Protons
40   
99+
103   
15

Number of Neutrons
51   
99+
157   
7

Number of Electrons
40   
99+
103   
15

Radius of an Atom
  
  

Atomic Radius
160.00 pm   
27
Not Available   

Covalent Radius
175.00 pm   
23
Not Available   

Van der Waals Radius
200.00 pm   
28
246.00 pm   
8

Atomic Weight
91.22 amu   
99+
266.00 amu   
12

Atomic Volume
14.10 cm3/mol   
36
Not Available   

Adjacent Atomic Numbers
  
  

Previous Element
Yttrium
  
Nobelium
  

Next Element
Niobium
  

Valence Electron Potential
80.00 (-eV)   
18
Not Available   

Lattice Constant
323.20 pm   
99+
Not Available   

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

Lattice C/A Ratio
1.59   
8
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
6.52 g/cm3   
99+
Not Available   

Density When Liquid (at m.p.)
5.80 g/cm3   
99+
Not Available   

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
Not Available   

Young's Modulus
88.00 GPa   
22
Not Available   

Poisson Ratio
0.34   
10
0.32   
12

Other Mechanical Properties
Ductile, Malleable   
Unknown   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
6.51   
99+
Not Available   

Magnetic Ordering
Paramagnetic   
Unknown   

Electrical Properties
  
  

Electrical Property
Conductor   
Unknown   

Resistivity
421.00 nΩ·m   
11
Not Available   

Electrical Conductivity
0.02 106/cm Ω   
99+
Not Available   

Electron Affinity
41.10 kJ/mol   
27
Not Available   

Thermal Properties

Specific Heat
0.27 J/(kg K)   
19
Not Available   

Molar Heat Capacity
25.36 J/mol·K   
99+
Not Available   

Thermal Conductivity
22.60 W/m·K   
99+
Not Available   

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
5.70 µm/(m·K)   
99+
Not Available   

Enthalpy
  
  

Enthalpy of Vaporization
581.60 kJ/mol   
9
Not Available   

Enthalpy of Fusion
20.90 kJ/mol   
11
Not Available   

Enthalpy of Atomization
598.00 kJ/mol   
10
Not Available   

Standard Molar Entropy
39.00 J/mol.K   
39
Not Available   

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