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Meitnerium vs Cerium

Meitnerium
Cerium
Cerium vs Meitnerium


Periodic Table
Symbol
Mt   
Ce   
Group Number
9   
9
Not Available   
Period Number
7   
6   
Block
d block   
f block   
Element Family
Probably Transition   
Lanthanide   
CAS Number
54038016   
10
7440451   
99+
Space Group Name
Not Available   
P63/mmc   
Space Group Number
Not Available   
194.00   
5
Facts
Interesting Facts
Not Available   
  • Cerium is a rare earth metal but still it is not rare at all.
  • It’s non-toxic compound Cerium sulfide has a rich red color and it is used as a pigment.
  • Cerium metal is also used in Flat screen TVs, light bulb, floodlights, etc.
  
Sources
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced   
Found in Minerals, Mining, Ores of Minerals   
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung   
Martin Heinrich Klaproth, Jöns Jakob Berzelius, Wilhelm Hisinger   
Discovery
In 1982   
In 1803   
Abundance
  
  
Abundance In Universe
Not Available   
1 * 10-6 %   
16
Abundance In Sun
~-9999 %   
~0.0000004 %   
23
Abundance In Meteorites
Not Available   
0.00 %   
27
Abundance In Earth's Crust
Not Available   
0.01 %   
18
Abundance In Oceans
Not Available   
0.00 %   
33
Uses
Uses & Benefits
  • Currently known uses of Meitnerium metal are limited to research purpose only.
  
  • It is used to include flints for cigarette lighters.
  • Its compound Cerium (Ill) Oxide is used as a catalyst; it is put inside the walls of the oven as it prevents from the buildup of cooking residues.
  
Industrial Uses
NA   
Chemical Industry   
Medical Uses
NA   
Medical Research   
Other Uses
NA   
Alloys   
Biological Properties
  
  
Toxicity
Unknown   
Moderately Toxic   
Present in Human Body
No   
Yes   
In Blood
0.00 Blood/mg dm-3   
37
0.00 Blood/mg dm-3   
30
In Bone
0.00 p.p.m.   
36
2.70 p.p.m.   
14
Physical Properties
Melting Point
Not Available   
795.00 °C   
99+
Boiling Point
Not Available   
3,257.00 °C   
23
Appearance
  
  
Physical State
Solid   
Solid   
Color
Unknown   
Silvery White   
Luster
Unknown Luster   
Lustrous   
Hardness
  
  
Mohs Hardness
Not Available   
2.50   
14
Brinell Hardness
Not Available   
186.00 MPa   
99+
Vickers Hardness
Not Available   
210.00 MPa   
32
Speed of Sound
Not Available   
2,100.00 m/s   
99+
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
Mt   
Ce   
Isotopes
  
  
Known Isotopes
4   
33
30   
9
Electronegativity
  
  
Pauling Electronegativity
Not Available   
1.12   
99+
Allred Rochow Electronegativity
Not Available   
1.08   
31
Electropositivity
  
  
Pauling Electropositivity
Not Available   
2.88   
11
Ionization Energies
  
  
1st Energy Level
800.80 kJ/mol   
15
534.40 kJ/mol   
99+
2nd Energy Level
1,823.60 kJ/mol   
17
1,050.00 kJ/mol   
99+
3rd Energy Level
2,904.20 kJ/mol   
31
1,949.00 kJ/mol   
99+
4th Energy Level
3,859.40 kJ/mol   
99+
3,547.00 kJ/mol   
99+
5th Energy Level
4,920.80 kJ/mol   
35
6,325.00 kJ/mol   
22
6th Energy Level
Not Available   
7,490.00 kJ/mol   
21
Electrochemical Equivalent
Not Available   
1.74 g/amp-hr   
99+
Electron Work Function
Not Available   
2.84 eV   
39
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity   
Chemical Stability, Anti Corrosion, Ionization, Radioactive Isotopes, Solubility   
Atomic Properties
Atomic Number
109   
9
58   
99+
Electron Configuration
[Rn] 5f14 6d7 7s2   
[Xe] 4f1 5d1 6s2   
Crystal Structure
Face Centered Cubic (FCC)   
Double Hexagonal Close Packed (DHCP)   
Crystal Lattice
FCC-Crystal-Structure-of-Meitnerium.jpg#100   
DHCP-Crystal-Structure-of-Cerium.jpg#100   
Atom
  
  
Number of Protons
109   
9
58   
99+
Number of Neutrons
157   
7
82   
99+
Number of Electrons
109   
9
58   
99+
Radius of an Atom
  
  
Atomic Radius
122.00 pm   
99+
181.80 pm   
12
Covalent Radius
129.00 pm   
99+
204.00 pm   
8
Van der Waals Radius
Not Available   
235.00 pm   
17
Atomic Weight
278.00 amu   
7
140.12 amu   
99+
Atomic Volume
Not Available   
20.67 cm3/mol   
17
Adjacent Atomic Numbers
  
  
Previous Element
Hassium
  
Lanthanum
  
Next Element
Darmstadtium
  
Praseodymium
  
Valence Electron Potential
Not Available   
41.78 (-eV)   
99+
Lattice Constant
Not Available   
362.00 pm   
34
Lattice Angles
NA   
π/2, π/2, 2 π/3   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
37.40 g/cm3   
2
6.77 g/cm3   
99+
Density When Liquid (at m.p.)
Not Available   
6.55 g/cm3   
38
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
Not Available   
0.00 (Pa)   
34
Vapor Pressure at 2000 K
Not Available   
1.04 (Pa)   
13
Elasticity properties
  
  
Shear Modulus
Not Available   
13.50 GPa   
99+
Bulk Modulus
Not Available   
21.50 GPa   
99+
Young's Modulus
Not Available   
33.60 GPa   
99+
Poisson Ratio
Not Available   
0.24   
27
Other Mechanical Properties
NA   
Ductile, Malleable   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
Not Available   
6.77   
99+
Magnetic Ordering
Paramagnetic   
Paramagnetic   
Electrical Properties
  
  
Electrical Property
Unknown   
Conductor   
Resistivity
Not Available   
828.00 nΩ·m   
3
Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+
Electron Affinity
Not Available   
50.00 kJ/mol   
21
Thermal Properties
Specific Heat
Not Available   
0.19 J/(kg K)   
32
Molar Heat Capacity
Not Available   
26.94 J/mol·K   
23
Thermal Conductivity
Not Available   
11.30 W/m·K   
99+
Critical Temperature
Not Available   
Not Available   
Thermal Expansion
Not Available   
6.30 µm/(m·K)   
99+
Enthalpy
  
  
Enthalpy of Vaporization
Not Available   
414.00 kJ/mol   
16
Enthalpy of Fusion
Not Available   
5.46 kJ/mol   
99+
Enthalpy of Atomization
Not Available   
381.00 kJ/mol   
23
Standard Molar Entropy
Not Available   
72.00 J/mol.K   
12
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