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Fermium Lithium Comparison

Fermium
Lithium
Lithium Fermium comparison


Periodic Table
Symbol
Fm  
Li  
Group Number
3  
15
1  
17
Period Number
7  
2  
Block
f block  
s block  
Element Family
Actinide  
Alkali  
CAS Number
7440724  
19
7439932  
99+
Space Group Name
-  
Im_ 3m  
Space Group Number
194.00  
7
229.00  
2
Facts
Interesting Facts
  • Fermium metal is highly radioactive in nature.
  • Fermium is synthetically produced metal.
  
  • Heat capacity of Lithium is very high.
  • Lithium inflammable and highly explosive metal, hence it has to be stored properly.
  
Sources
Bombarding Pu-239 with Neutrons  
Found in Minerals, Mining  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
Johan August Arfwedson  
Discovery
In 1952  
In 1817  
Abundance
  
  
Abundance In Universe
0.00 %  
35
0.00 %  
19
Abundance In Sun
0.00 %  
30
0.00 %  
11
Abundance In Meteorites
0.00 %  
99+
0.00 %  
22
Abundance In Earth's Crust
0.00 %  
99+
0.00 %  
99+
Abundance In Oceans
-  
0.00 %  
15
Abundance In Humans
-  
0.00 %  
19
Uses
Uses & Benefits
  • Currently known uses of Fermium metal are limited to research purpose only.
  
  • The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
  • it is also used in manufacturing non-rechargeable batteries.
  
Industrial Uses
-  
Aerospace Industry, Electrical Industry, Electronic Industry  
Medical Uses
-  
-  
Other Uses
-  
Alloys  
Biological Properties
  
  
Toxicity
-  
-  
Present in Human Body
No  
Yes  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
27
In Bone
0.00 p.p.m.  
99+
1.30 p.p.m.  
18
Physical
Melting Point
1,527.00 °C  
26
180.54 °C  
99+
Boiling Point
0.00 °C  
99+
1,347.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
Silvery White  
Luster
-  
-  
Hardness
  
  
Mohs Hardness
6.00  
6
0.60  
23
Brinell Hardness
500.00 MPa  
28
5.00 MPa  
99+
Vickers Hardness
600.00 MPa  
28
5.30 MPa  
99+
Speed of Sound
2,500.00 m/s  
99+
6,000.00 m/s  
6
Optical Properties
  
  
Refractive Index
1.30  
99+
1.35  
99+
Reflectivity
59.00 %  
24
95.00 %  
2
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Fm  
Li  
Isotopes
  
  
Known Isotopes
18  
21
8  
30
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
0.98  
99+
Sanderson Electronegativity
1.30  
25
0.89  
99+
Allred Rochow Electronegativity
1.20  
28
0.97  
39
Mulliken-Jaffe Electronegativity
1.30  
33
0.97  
99+
Allen Electronegativity
1.30  
40
0.91  
99+
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
3.02  
8
Ionization Energies
  
  
1st Energy Level
627.00 kJ/mol  
99+
520.20 kJ/mol  
99+
2nd Energy Level
1,225.00 kJ/mol  
99+
7,298.10 kJ/mol  
3
3rd Energy Level
2,363.00 kJ/mol  
99+
11,815.00 kJ/mol  
4
4th Energy Level
3,792.00 kJ/mol  
99+
520.20 kJ/mol  
99+
5th Energy Level
6,270.00 kJ/mol  
39
5,200.00 kJ/mol  
99+
6th Energy Level
6,270.00 kJ/mol  
99+
5,200.00 kJ/mol  
99+
7th Energy level
6,270.00 kJ/mol  
99+
5,202.00 kJ/mol  
99+
8th Energy Level
6,270.00 kJ/mol  
99+
730.00 kJ/mol  
99+
9th Energy Level
7,040.00 kJ/mol  
33
5,200.00 kJ/mol  
99+
10th Energy Level
6,270.00 kJ/mol  
99+
520.00 kJ/mol  
99+
11th Energy Level
6,270.00 kJ/mol  
99+
5,202.00 kJ/mol  
99+
12th Energy Level
62,700.00 kJ/mol  
10
5,200.00 kJ/mol  
99+
13th Energy Level
6,270.00 kJ/mol  
38
5,200.00 kJ/mol  
99+
14th Energy Level
6,270.00 kJ/mol  
27
520.20 kJ/mol  
99+
15th Energy Level
62,700.00 kJ/mol  
38
52,000.00 kJ/mol  
99+
16th Energy Level
62,700.00 kJ/mol  
28
52,000.00 kJ/mol  
99+
17th Energy Level
627.00 kJ/mol  
99+
520.20 kJ/mol  
99+
18th Energy Level
6,270.00 kJ/mol  
40
520.00 kJ/mol  
99+
19th Energy Level
994.80 kJ/mol  
21
520.20 kJ/mol  
99+
20th Energy Level
627.00 kJ/mol  
99+
520.00 kJ/mol  
99+
21st Energy Level
627.00 kJ/mol  
99+
520.20 kJ/mol  
99+
22nd Energy Level
345.00 kJ/mol  
99+
520.00 kJ/mol  
99+
23rd Energy Level
6,270.00 kJ/mol  
14
520.20 kJ/mol  
99+
24th Energy Level
627.60 kJ/mol  
38
520.20 kJ/mol  
99+
25th Energy Level
627.00 kJ/mol  
40
520.00 kJ/mol  
99+
26th Energy Level
627.60 kJ/mol  
39
520.20 kJ/mol  
99+
27th Energy Level
627.60 kJ/mol  
99+
520.20 kJ/mol  
99+
28th Energy Level
627.60 kJ/mol  
99+
520.20 kJ/mol  
99+
29th Energy Level
627.60 kJ/mol  
99+
520.20 kJ/mol  
99+
30th Energy Level
627.60 kJ/mol  
99+
520.00 kJ/mol  
99+
Electrochemical Equivalent
3.20 g/amp-hr  
15
0.26 g/amp-hr  
99+
Electron Work Function
4.47 eV  
21
2.90 eV  
99+
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Corrosion, Flammable, Ionization, Radioactive Isotopes  
Atomic
Atomic Number
100  
18
3  
99+
Electron Configuration
[Rn] 5f12 7s2  
[He] 2s1  
Crystal Structure
Not Known  
Body Centered Cubic (BCC)  
Crystal Lattice
Unknown-Crystal-Structure-of-Fermium.jpg#100  
BCC-Crystal-Structure-.jpg#100  
Atom
  
  
Number of Protons
100  
18
3  
99+
Number of Neutrons
157  
8
4  
99+
Number of Electrons
100  
18
3  
99+
Radius of an Atom
  
  
Atomic Radius
180.00 pm  
16
152.00 pm  
33
Covalent Radius
180.00 pm  
23
128.00 pm  
99+
Van der Waals Radius
245.00 pm  
13
182.00 pm  
99+
Atomic Weight
257.00 amu  
15
6.94 amu  
99+
Atomic Volume
18.00 cm3/mol  
99+
13.10 cm3/mol  
99+
Adjacent Atomic Numbers
  
  
Previous Element
Einsteinium
  
No Previous Element  
Next Element
Mendelevium
  
Beryllium
  
Valence Electron Potential
0.00 (-eV)  
99+
19.00 (-eV)  
99+
Lattice Constant
350.00 pm  
99+
351.00 pm  
99+
Lattice Angles
-  
π/2, π/2, π/2  
Lattice C/A Ratio
1.63  
13
1.62  
16
Mechanical
Density
  
  
Density At Room Temperature
9.70 g/cm3  
99+
0.53 g/cm3  
99+
Density When Liquid (at m.p.)
9.70 g/cm3  
99+
0.51 g/cm3  
99+
Tensile Strength
0.10 MPa  
99+
60.00 MPa  
35
Viscosity
0.00  
25
0.00  
10
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
22
109.00 (Pa)  
2
Vapor Pressure at 2000 K
0.00 (Pa)  
30
0.00 (Pa)  
30
Elasticity properties
  
  
Shear Modulus
30.00 GPa  
27
4.20 GPa  
99+
Bulk Modulus
50.00 GPa  
24
11.00 GPa  
99+
Young's Modulus
0.00 GPa  
99+
4.90 GPa  
99+
Poisson Ratio
0.35  
9
0.36  
8
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
9.70  
99+
0.53  
99+
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
16
0.00 H/m  
11
Susceptibility
0.00  
24
0.00  
16
Electrical Properties
  
  
Electrical Property
-  
Conductor  
Resistivity
7.90 nΩ·m  
99+
92.80 nΩ·m  
33
Electrical Conductivity
0.00 106/cm Ω  
99+
0.11 106/cm Ω  
22
Electron Affinity
0.00 kJ/mol  
99+
59.60 kJ/mol  
20
Thermal
Specific Heat
0.10 J/(kg K)  
99+
3.60 J/(kg K)  
1
Molar Heat Capacity
27.00 J/mol·K  
29
24.86 J/mol·K  
99+
Thermal Conductivity
0.00 W/m·K  
99+
84.80 W/m·K  
20
Critical Temperature
1,323.00 K  
99+
3,223.00 K  
5
Thermal Expansion
11.00 µm/(m·K)  
99+
46.00 µm/(m·K)  
7
Enthalpy
  
  
Enthalpy of Vaporization
319.20 kJ/mol  
99+
134.70 kJ/mol  
99+
Enthalpy of Fusion
13.30 kJ/mol  
30
3.00 kJ/mol  
99+
Enthalpy of Atomization
-  
160.70 kJ/mol  
99+
Standard Molar Entropy
50.00 J/mol.K  
99+
29.10 J/mol.K  
99+
Summary >>
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