Home
 Compare Metals

Fermium vs Lawrencium

Fermium
Lawrencium
Lawrencium vs Fermium


Periodic Table
Symbol
Fm  
Lr  
Group Number
Not Available  
Not Available  
Period Number
7  
7  
Block
f block  
d block  
Element Family
Actinide  
Actinide  
CAS Number
7440724  
19
22537195  
15
Space Group Name
Not Available  
Not Available  
Space Group Number
Not Available  
Not Available  
Facts
Interesting Facts
  • Fermium metal is highly radioactive in nature.
  • Fermium is synthetically produced metal.
  
  • It is synthetically produced metal.
  • Radiation hazard can be produce by it.
  
Sources
Bombarding Pu-239 with Neutrons  
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research  
Discovery
In 1952  
In 1961–1971  
Abundance
  
  
Uses
Uses & Benefits
  • Currently known uses of Fermium metal are limited to research purpose only.
  
  • Currently known uses of Lawrencium metal are limited to research purpose only.
  
Industrial Uses
NA  
NA  
Medical Uses
NA  
NA  
Other Uses
NA  
NA  
Biological Properties
  
  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
37
0.00 Blood/mg dm-3  
37
In Bone
0.00 p.p.m.  
36
0.00 p.p.m.  
36
Physical Properties
Melting Point
1,527.00 °C  
26
1,627.00 °C  
20
Boiling Point
Not Available  
Not Available  
Appearance
  
  
Physical State
Solid  
Solid  
Color
Unknown  
Silver  
Luster
Not Defined  
Unknown Luster  
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
Fm  
Lr  
Isotopes
  
  
Known Isotopes
18  
21
10  
28
Electronegativity
  
  
Pauling Electronegativity
1.30  
32
Not Available  
Allred Rochow Electronegativity
1.20  
27
Not Available  
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
Not Available  
Ionization Energies
  
  
1st Energy Level
627.00 kJ/mol  
99+
470.00 kJ/mol  
99+
2nd Energy Level
1,225.00 kJ/mol  
99+
1,428.00 kJ/mol  
99+
3rd Energy Level
2,363.00 kJ/mol  
99+
2,228.00 kJ/mol  
99+
4th Energy Level
3,792.00 kJ/mol  
99+
4,910.00 kJ/mol  
21
Electrochemical Equivalent
3.20 g/amp-hr  
13
3.23 g/amp-hr  
11
Electron Work Function
Not Available  
Not Available  
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes  
Atomic Properties
Atomic Number
100  
18
103  
15
Electron Configuration
[Rn] 5f12 7s2  
[Rn] 5f14 7s2 7p1  
Crystal Structure
Not Known  
Hexagonal Close Packed (HCP)  
Crystal Lattice
Unknown-Crystal-Structure-of-Fermium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
100  
18
103  
15
Number of Neutrons
157  
7
157  
7
Number of Electrons
100  
18
103  
15
Radius of an Atom
  
  
Van der Waals Radius
245.00 pm  
9
246.00 pm  
8
Atomic Weight
257.00 amu  
15
266.00 amu  
12
Atomic Volume
Not Available  
Not Available  
Adjacent Atomic Numbers
  
  
Previous Element
Einsteinium
  
Nobelium
  
Next Element
Mendelevium
  
Rutherfordium
  
Valence Electron Potential
Not Available  
Not Available  
Lattice Constant
Not Available  
Not Available  
Lattice Angles
NA  
NA  
Lattice C/A Ratio
Not Available  
Not Available  
Mechanical Properties
Density
  
  
Tensile Strength
Not Available  
Not Available  
Viscosity
Not Available  
Not Available  
Vapor Pressure
  
  
Elasticity properties
  
  
Poisson Ratio
Not Available  
0.32  
12
Other Mechanical Properties
NA  
Unknown  
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 >>
<< All

Compare Actinide Series

Actinide Metals

Actinide Metals

» More Actinide Metals

Compare Actinide Series

» More Compare Actinide Series
Home | About | Contact | Disclaimer | Terms of use
© A softusvista inc. venture!