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Mendelevium vs Moscovium

Mendelevium
Moscovium
Moscovium vs Mendelevium


Periodic Table
Symbol
Md  
Mc  
Group Number
3  
15
15  
3
Period Number
7  
7  
Block
f block  
p block  
Element Family
Actinide  
Probably Post-​Transition  
CAS Number
7440111  
99+
54085642  
4
Space Group Name
-  
-  
Space Group Number
194.00  
7
194.00  
7
Facts
Interesting Facts
  • Mendelevium metal is synthetically produced metal.
  • Mendelevium metal has been produced in only trace amount.
  
Moscovium is named after Moscow, where the Joint Institute for Nuclear Research is located.  
Sources
Bombarding Einsteinium with Helium Ions  
Synthetically Produced  
History
  
  
Who Discovered
Lawrence Berkeley National Laboratory  
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory  
Discovery
In 1955  
In 2003  
Abundance
  
  
Abundance In Universe
0.00 %  
40
0.00 %  
40
Abundance In Sun
-  
-  
Abundance In Meteorites
0.00 %  
99+
0.00 %  
99+
Abundance In Earth's Crust
-  
-  
Abundance In Oceans
-  
-  
Abundance In Humans
0.00 %  
24
-  
Uses
Uses & Benefits
  • Currently known uses of Mendelevium metal are limited to research purpose only.
  
  • Currently known uses of Ununpentium metal are limited to research purpose only.
  
Industrial Uses
-  
-  
Medical Uses
-  
-  
Other Uses
-  
Research Purposes  
Biological Properties
  
  
Toxicity
-  
-  
Present in Human Body
No  
No  
In Blood
0.00 Blood/mg dm-3  
40
0.00 Blood/mg dm-3  
30
In Bone
0.00 p.p.m.  
99+
0.30 p.p.m.  
26
Physical
Melting Point
827.00 °C  
99+
400.00 °C  
99+
Boiling Point
0.00 °C  
99+
1,100.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
-  
Luster
Metallic  
Unknown Luster  
Hardness
  
  
Mohs Hardness
-  
-  
Brinell Hardness
350.00 MPa  
36
700.00 MPa  
17
Vickers Hardness
0.00 MPa  
99+
400.00 MPa  
99+
Speed of Sound
2,680.00 m/s  
99+
3,790.00 m/s  
28
Optical Properties
  
  
Refractive Index
1.30  
99+
1.70  
27
Reflectivity
66.00 %  
17
67.00 %  
16
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Md  
Mc  
Isotopes
  
  
Known Isotopes
16  
23
5  
32
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
2.20  
5
Sanderson Electronegativity
1.30  
25
1.90  
13
Allred Rochow Electronegativity
1.20  
28
1.90  
1
Mulliken-Jaffe Electronegativity
1.30  
33
1.20  
39
Allen Electronegativity
1.30  
40
1.20  
99+
Electropositivity
  
  
Pauling Electropositivity
2.70  
22
2.20  
39
Ionization Energies
  
  
1st Energy Level
635.00 kJ/mol  
99+
538.40 kJ/mol  
99+
2nd Energy Level
1,235.00 kJ/mol  
99+
1,756.00 kJ/mol  
25
3rd Energy Level
2,470.00 kJ/mol  
99+
2,653.30 kJ/mol  
99+
4th Energy Level
3,840.00 kJ/mol  
99+
4,679.50 kJ/mol  
34
5th Energy Level
6,350.00 kJ/mol  
36
5,721.60 kJ/mol  
99+
6th Energy Level
6,350.00 kJ/mol  
99+
6,700.00 kJ/mol  
99+
7th Energy level
6,350.00 kJ/mol  
99+
6,700.00 kJ/mol  
99+
8th Energy Level
6,350.00 kJ/mol  
99+
6,700.00 kJ/mol  
39
9th Energy Level
6,350.00 kJ/mol  
99+
6,700.00 kJ/mol  
36
10th Energy Level
6,350.00 kJ/mol  
99+
6,100.00 kJ/mol  
99+
11th Energy Level
6,400.00 kJ/mol  
99+
6,500.00 kJ/mol  
99+
12th Energy Level
60,100.00 kJ/mol  
16
67,000.00 kJ/mol  
6
13th Energy Level
6,350.00 kJ/mol  
37
7,600.00 kJ/mol  
23
14th Energy Level
1,150.00 kJ/mol  
99+
1,139.00 kJ/mol  
99+
15th Energy Level
63,500.00 kJ/mol  
37
67,000.00 kJ/mol  
33
16th Energy Level
635.00 kJ/mol  
99+
54,000.00 kJ/mol  
99+
17th Energy Level
1,107.00 kJ/mol  
21
540.10 kJ/mol  
99+
18th Energy Level
6,350.00 kJ/mol  
39
3,200.00 kJ/mol  
99+
19th Energy Level
635.00 kJ/mol  
99+
540.10 kJ/mol  
99+
20th Energy Level
635.00 kJ/mol  
40
830.00 kJ/mol  
20
21st Energy Level
6,350.00 kJ/mol  
13
1,085.00 kJ/mol  
31
22nd Energy Level
635.00 kJ/mol  
34
540.00 kJ/mol  
99+
23rd Energy Level
6,350.00 kJ/mol  
13
6,100.00 kJ/mol  
16
24th Energy Level
635.00 kJ/mol  
36
540.20 kJ/mol  
99+
25th Energy Level
635.00 kJ/mol  
38
700.00 kJ/mol  
31
26th Energy Level
635.00 kJ/mol  
37
670.00 kJ/mol  
30
27th Energy Level
635.00 kJ/mol  
39
670.00 kJ/mol  
31
28th Energy Level
635.00 kJ/mol  
99+
670.00 kJ/mol  
36
29th Energy Level
635.00 kJ/mol  
99+
670.00 kJ/mol  
37
30th Energy Level
635.00 kJ/mol  
40
670.00 kJ/mol  
32
Electrochemical Equivalent
3.21 g/amp-hr  
13
3.00 g/amp-hr  
21
Electron Work Function
3.89 eV  
37
4.10 eV  
32
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Chemical Stability, Ionization  
Atomic
Atomic Number
101  
17
115  
3
Electron Configuration
[Rn] 5f13 7s2  
[Rn] 5f14 6d10 7s2 7p3  
Crystal Structure
Not Known  
Not Known  
Crystal Lattice
Unknown-Crystal-Structure-of-Mendelevium.jpg#100  
Unknown-Crystal-Structure-of-Ununpentium.jpg#100  
Atom
  
  
Number of Protons
101  
17
115  
3
Number of Neutrons
157  
8
159  
6
Number of Electrons
101  
17
115  
3
Radius of an Atom
  
  
Atomic Radius
175.00 pm  
21
170.00 pm  
24
Covalent Radius
175.00 pm  
25
170.00 pm  
27
Van der Waals Radius
246.00 pm  
12
320.00 pm  
3
Atomic Weight
258.00 amu  
14
289.00 amu  
3
Atomic Volume
19.90 cm3/mol  
32
22.60 cm3/mol  
19
Adjacent Atomic Numbers
  
  
Previous Element
Fermium
  
Flerovium
  
Next Element
Nobelium
  
Livermorium
  
Valence Electron Potential
63.70 (-eV)  
23
5.30 (-eV)  
99+
Lattice Constant
-  
0.00 pm  
99+
Lattice Angles
-  
-  
Lattice C/A Ratio
1.58  
36
1.70  
8
Mechanical
Density
  
  
Density At Room Temperature
10.30 g/cm3  
38
4.51 g/cm3  
99+
Density When Liquid (at m.p.)
10.30 g/cm3  
39
13.50 g/cm3  
28
Tensile Strength
80.00 MPa  
29
80.00 MPa  
29
Viscosity
0.00  
25
0.00  
25
Vapor Pressure
  
  
Vapor Pressure at 1000 K
0.00 (Pa)  
37
0.00 (Pa)  
37
Vapor Pressure at 2000 K
0.00 (Pa)  
37
0.00 (Pa)  
99+
Elasticity properties
  
  
Shear Modulus
32.00 GPa  
24
-  
Bulk Modulus
0.00 GPa  
99+
0.00 GPa  
99+
Young's Modulus
12.00 GPa  
99+
11.80 GPa  
99+
Poisson Ratio
0.30  
14
0.30  
14
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
13.50  
29
13.50  
29
Magnetic Ordering
-  
Paramagnetic  
Permeability
0.00 H/m  
11
0.00 H/m  
8
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
-  
Resistivity
0.63 nΩ·m  
99+
0.35 nΩ·m  
99+
Electrical Conductivity
0.00 106/cm Ω  
99+
0.00 106/cm Ω  
99+
Electron Affinity
50.00 kJ/mol  
26
50.00 kJ/mol  
26
Thermal
Specific Heat
0.10 J/(kg K)  
99+
0.13 J/(kg K)  
40
Molar Heat Capacity
27.00 J/mol·K  
29
27.00 J/mol·K  
29
Thermal Conductivity
0.00 W/m·K  
99+
0.37 W/m·K  
99+
Critical Temperature
1,100.00 K  
99+
1,100.00 K  
99+
Thermal Expansion
11.60 µm/(m·K)  
99+
12.50 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
380.50 kJ/mol  
26
420.30 kJ/mol  
21
Enthalpy of Fusion
-  
-  
Enthalpy of Atomization
410.80 kJ/mol  
25
395.60 kJ/mol  
28
Standard Molar Entropy
37.40 J/mol.K  
99+
50.00 J/mol.K  
99+
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