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Lithium Mendelevium Comparison

Lithium
Mendelevium
Mendelevium Lithium comparison


Periodic Table
Symbol
Li   
Md   
Group Number
1   
17
Not Available   
Period Number
2   
7   
Block
s block   
f block   
Element Family
Alkali   
Actinide   
CAS Number
7439932   
99+
7440111   
99+
Space Group Name
Im_ 3m   
Not Available   
Space Group Number
229.00   
1
Not Available   
Facts
Interesting Facts
  • Heat capacity of Lithium is very high.
  • Lithium inflammable and highly explosive metal, hence it has to be stored properly.
  
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  
Sources
Found in Minerals, Mining   
Bombarding Einsteinium with Helium Ions   
History
  
  
Who Discovered
Johan August Arfwedson   
Lawrence Berkeley National Laboratory   
Discovery
In 1817   
In 1955   
Abundance
  
  
Abundance In Universe
6 * 10-7 %   
18
Not Available   
Abundance In Sun
~0.00017 %   
11
~-9999 %   
Abundance In Meteorites
0.00 %   
22
Not Available   
Abundance In Earth's Crust
0.00 %   
99+
Not Available   
Abundance In Oceans
0.00 %   
15
Not Available   
Abundance In Humans
0.00 %   
16
Not Available   
Uses
Uses & Benefits
  • The main usage of Lithium is manufacturing rechargeable batteries for electronic equipment and gadgets.
  • it is also used in manufacturing non-rechargeable batteries.
  
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  
Industrial Uses
Aerospace Industry, Electrical Industry, Electronic Industry   
NA   
Medical Uses
NA   
NA   
Other Uses
Alloys   
NA   
Biological Properties
  
  
Toxicity
NA   
Unknown   
Present in Human Body
Yes   
No   
In Blood
0.00 Blood/mg dm-3   
27
0.00 Blood/mg dm-3   
37
In Bone
1.30 p.p.m.   
17
0.00 p.p.m.   
36
Physical Properties
Melting Point
180.54 °C   
99+
827.00 °C   
99+
Boiling Point
1,347.00 °C   
99+
Not Available   
Appearance
  
  
Physical State
Solid   
Solid   
Color
Silvery White   
Unknown   
Luster
NA   
Metallic   
Hardness
  
  
Mohs Hardness
0.60   
21
Not Available   
Brinell Hardness
5.00 MPa   
99+
Not Available   
Speed of Sound
6,000.00 m/s   
3
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
Li   
Md   
Isotopes
  
  
Known Isotopes
8   
30
16   
23
Electronegativity
  
  
Pauling Electronegativity
0.98   
99+
1.30   
32
Sanderson Electronegativity
0.89   
26
Not Available   
Allred Rochow Electronegativity
0.97   
38
1.20   
27
Mulliken-Jaffe Electronegativity
0.97   
19
Not Available   
Allen Electronegativity
0.91   
99+
Not Available   
Electropositivity
  
  
Pauling Electropositivity
3.02   
8
2.70   
22
Ionization Energies
  
  
1st Energy Level
520.20 kJ/mol   
99+
635.00 kJ/mol   
99+
2nd Energy Level
7,298.10 kJ/mol   
3
1,235.00 kJ/mol   
99+
3rd Energy Level
11,815.00 kJ/mol   
4
2,470.00 kJ/mol   
99+
4th Energy Level
Not Available   
3,840.00 kJ/mol   
99+
Electrochemical Equivalent
0.26 g/amp-hr   
99+
3.21 g/amp-hr   
12
Electron Work Function
2.90 eV   
37
Not Available   
Other Chemical Properties
Corrosion, Flammable, Ionization, Radioactive Isotopes   
Ionization, Radioactive Isotopes, Radioactivity   
Atomic Properties
Atomic Number
3   
99+
101   
17
Electron Configuration
[He] 2s1   
[Rn] 5f13 7s2   
Crystal Structure
Body Centered Cubic (BCC)   
Not Known   
Crystal Lattice
BCC-Crystal-Structure-.jpg#100   
Unknown-Crystal-Structure-of-Mendelevium.jpg#100   
Atom
  
  
Number of Protons
3   
99+
101   
17
Number of Neutrons
4   
99+
157   
7
Number of Electrons
3   
99+
101   
17
Radius of an Atom
  
  
Atomic Radius
152.00 pm   
31
Not Available   
Covalent Radius
128.00 pm   
99+
Not Available   
Van der Waals Radius
182.00 pm   
35
246.00 pm   
8
Atomic Weight
6.94 amu   
99+
258.00 amu   
14
Atomic Volume
13.10 cm3/mol   
39
Not Available   
Adjacent Atomic Numbers
  
  
Previous Element
No Previous Element   
Fermium
  
Next Element
Beryllium
  
Nobelium
  
Valence Electron Potential
19.00 (-eV)   
99+
Not Available   
Lattice Constant
351.00 pm   
99+
Not Available   
Lattice Angles
π/2, π/2, π/2   
NA   
Lattice C/A Ratio
Not Available   
Not Available   
Mechanical Properties
Density
  
  
Density At Room Temperature
0.53 g/cm3   
99+
Not Available   
Density When Liquid (at m.p.)
0.51 g/cm3   
99+
Not Available   
Tensile Strength
Not Available   
Not Available   
Viscosity
Not Available   
Not Available   
Vapor Pressure
  
  
Vapor Pressure at 1000 K
109.00 (Pa)   
2
Not Available   
Elasticity properties
  
  
Shear Modulus
4.20 GPa   
99+
Not Available   
Bulk Modulus
11.00 GPa   
99+
Not Available   
Young's Modulus
4.90 GPa   
99+
Not Available   
Poisson Ratio
Not Available   
Not Available   
Other Mechanical Properties
NA   
Unknown   
Magnetic Properties
Magnetic Characteristics
  
  
Specific Gravity
0.53   
99+
Not Available   
Magnetic Ordering
Paramagnetic   
Unknown   
Electrical Properties
  
  
Electrical Property
Conductor   
Unknown   
Resistivity
92.80 nΩ·m   
33
Not Available   
Electrical Conductivity
0.11 106/cm Ω   
19
Not Available   
Electron Affinity
59.60 kJ/mol   
16
Not Available   
Thermal Properties
Specific Heat
3.60 J/(kg K)   
1
Not Available   
Molar Heat Capacity
24.86 J/mol·K   
99+
Not Available   
Thermal Conductivity
84.80 W/m·K   
20
Not Available   
Critical Temperature
3,223.00 K   
1
Not Available   
Thermal Expansion
46.00 µm/(m·K)   
7
Not Available   
Enthalpy
  
  
Enthalpy of Vaporization
134.70 kJ/mol   
99+
Not Available   
Enthalpy of Fusion
3.00 kJ/mol   
99+
Not Available   
Enthalpy of Atomization
160.70 kJ/mol   
99+
Not Available   
Standard Molar Entropy
29.10 J/mol.K   
99+
Not Available   
Summary >>
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