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Flerovium vs Fermium

Flerovium
Fermium
Fermium vs Flerovium


Periodic Table
Symbol
Fl  
Fm  
Group Number
14  
4
Not Available  
Period Number
7  
7  
Block
p block  
f block  
Element Family
Post-​Transition  
Actinide  
CAS Number
54085164  
5
7440724  
19
Space Group Name
Not Available  
Not Available  
Space Group Number
Not Available  
Not Available  
Facts
Interesting Facts
Not Available  
  • Fermium metal is highly radioactive in nature.
  • Fermium is synthetically produced metal.
  
Sources
NA  
Bombarding Pu-239 with Neutrons  
History
  
  
Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory  
Lawrence Berkeley National Laboratory  
Discovery
In 1999  
In 1952  
Abundance
  
  
Uses
Uses & Benefits
  • Currently known uses of Flerovium metal are limited to research purpose only.
  
  • Currently known uses of Fermium metal are limited to research purpose only.
  
Industrial Uses
NA  
NA  
Medical Uses
NA  
NA  
Other Uses
Alloys, Research Purposes  
NA  
Biological Properties
  
  
Present in Human Body
No  
No  
In Blood
Not Available  
0.00 Blood/mg dm-3  
37
In Bone
Not Available  
0.00 p.p.m.  
36
Physical Properties
Melting Point
67.00 °C  
99+
1,527.00 °C  
26
Boiling Point
147.00 °C  
99+
Not Available  
Appearance
  
  
Physical State
Solid  
Solid  
Luster
Unknown Luster  
Not Defined  
Hardness
  
  
Speed of Sound
Not Available  
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
Fl  
Fm  
Isotopes
  
  
Known Isotopes
1  
34
18  
21
Electronegativity
  
  
Pauling Electronegativity
Not Available  
1.30  
32
Allred Rochow Electronegativity
Not Available  
1.20  
27
Electropositivity
  
  
Pauling Electropositivity
Not Available  
2.70  
22
Ionization Energies
  
  
1st Energy Level
823.90 kJ/mol  
13
627.00 kJ/mol  
99+
2nd Energy Level
1,601.60 kJ/mol  
34
1,225.00 kJ/mol  
99+
3rd Energy Level
3,367.30 kJ/mol  
18
2,363.00 kJ/mol  
99+
4th Energy Level
4,399.70 kJ/mol  
27
3,792.00 kJ/mol  
99+
5th Energy Level
5,847.00 kJ/mol  
26
Not Available  
Electrochemical Equivalent
Not Available  
3.20 g/amp-hr  
13
Electron Work Function
Not Available  
Not Available  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic Properties
Atomic Number
114  
4
100  
18
Electron Configuration
[Rn] 5f14 6d10 7s2 7p2  
[Rn] 5f12 7s2  
Crystal Structure
Not Known  
Not Known  
Crystal Lattice
Unknown-Crystal-Structure-of-Flerovium.jpg#100  
Unknown-Crystal-Structure-of-Fermium.jpg#100  
Atom
  
  
Number of Protons
114  
4
100  
18
Number of Neutrons
184  
1
157  
7
Number of Electrons
114  
4
100  
18
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
14
Not Available  
Covalent Radius
171.00 pm  
24
Not Available  
Van der Waals Radius
Not Available  
245.00 pm  
9
Atomic Weight
289.00 amu  
3
257.00 amu  
15
Atomic Volume
Not Available  
Not Available  
Adjacent Atomic Numbers
  
  
Previous Element
Nihonium
  
Einsteinium
  
Next Element
Moscovium
  
Mendelevium
  
Valence Electron Potential
Not Available  
Not Available  
Lattice Constant
Not Available  
Not Available  
Lattice Angles
Unknown  
NA  
Lattice C/A Ratio
Not Available  
Not Available  
Mechanical Properties
Density
  
  
Density At Room Temperature
14.00 g/cm3  
23
Not Available  
Tensile Strength
Not Available  
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Elasticity properties
  
  
Poisson Ratio
Not Available  
Not Available  
Other Mechanical Properties
NA  
NA  
Magnetic Properties
Magnetic Characteristics
  
  
Electrical Properties
  
  
Thermal Properties
Specific Heat
Not Available  
Not Available  
Molar Heat Capacity
Not Available  
Not Available  
Thermal Conductivity
Not Available  
Not Available  
Critical Temperature
Not Available  
Not Available  
Thermal Expansion
Not Available  
Not Available  
Enthalpy
  
  
Standard Molar Entropy
Not Available  
Not Available  
Periodic Table >>
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