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Meitnerium vs Nobelium

Meitnerium
Nobelium
Nobelium vs Meitnerium


Periodic Table
Symbol
Mt  
No  
Group Number
9  
9
3  
15
Period Number
7  
7  
Block
d block  
f block  
Element Family
Probably Transition  
Actinide  
CAS Number
54038016  
10
10028145  
16
Space Group Name
-  
-  
Space Group Number
166.00  
9
194.00  
7
Facts
Interesting Facts
Meitnerium is named after Lise Meitner, an Austrian physicist.  
  • The most stable isotope of Nobelium metal is No-259.
  • No-259 has a half-life of fifty-eight minutes.
  
Sources
Bombarding Bi209 with Accelerated Nuclei of Fe58, Synthetically Produced  
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining  
History
  
  
Who Discovered
Gesellschaft für Schwerionenforschung  
Joint Institute for Nuclear Research  
Discovery
In 1982  
In 1966  
Abundance
  
  
Abundance In Universe
0.00 %  
40
-  
Abundance In Sun
-  
-  
Abundance In Meteorites
0.00 %  
99+
-  
Abundance In Earth's Crust
-  
-  
Abundance In Oceans
-  
-  
Abundance In Humans
-  
-  
Uses
Uses & Benefits
  • Currently known uses of Meitnerium metal are limited to research purpose only.
  
  • Currently known uses of Nobelium 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  
40
In Bone
0.00 p.p.m.  
99+
0.00 p.p.m.  
99+
Physical
Melting Point
-  
827.00 °C  
99+
Boiling Point
0.00 °C  
99+
2,600.00 °C  
99+
Appearance
  
  
Physical State
Solid  
Solid  
Color
-  
-  
Luster
Unknown Luster  
Unknown Luster  
Hardness
  
  
Mohs Hardness
-  
-  
Brinell Hardness
400.00 MPa  
34
500.00 MPa  
28
Vickers Hardness
350.00 MPa  
99+
500.00 MPa  
35
Speed of Sound
3,200.00 m/s  
35
1,100.00 m/s  
99+
Optical Properties
  
  
Refractive Index
1.30  
99+
1.30  
99+
Reflectivity
68.00 %  
15
61.00 %  
22
Allotropes
No  
No  
α Allotropes
-  
-  
β Allotropes
-  
-  
γ Allotropes
-  
-  
Chemical
Chemical Formula
Mt  
No  
Isotopes
  
  
Known Isotopes
4  
33
13  
26
Electronegativity
  
  
Pauling Electronegativity
1.30  
33
1.30  
33
Sanderson Electronegativity
1.90  
13
1.30  
25
Allred Rochow Electronegativity
1.30  
25
1.20  
28
Mulliken-Jaffe Electronegativity
1.30  
33
1.30  
33
Allen Electronegativity
1.30  
40
1.10  
99+
Electropositivity
  
  
Pauling Electropositivity
2.00  
99+
2.70  
22
Ionization Energies
  
  
1st Energy Level
800.80 kJ/mol  
15
642.00 kJ/mol  
99+
2nd Energy Level
1,823.60 kJ/mol  
18
1,254.00 kJ/mol  
99+
3rd Energy Level
2,904.20 kJ/mol  
31
2,643.00 kJ/mol  
99+
4th Energy Level
3,859.40 kJ/mol  
99+
3,956.00 kJ/mol  
99+
5th Energy Level
4,920.80 kJ/mol  
99+
6,400.00 kJ/mol  
35
6th Energy Level
8,000.00 kJ/mol  
34
6,400.00 kJ/mol  
99+
7th Energy level
8,000.00 kJ/mol  
28
6,270.00 kJ/mol  
99+
8th Energy Level
8,000.00 kJ/mol  
28
6,270.00 kJ/mol  
99+
9th Energy Level
6,700.00 kJ/mol  
36
6,270.00 kJ/mol  
99+
10th Energy Level
5,800.00 kJ/mol  
99+
6,270.00 kJ/mol  
99+
11th Energy Level
6,300.00 kJ/mol  
99+
6,420.00 kJ/mol  
99+
12th Energy Level
0.00 kJ/mol  
99+
64,000.00 kJ/mol  
8
13th Energy Level
8,000.00 kJ/mol  
20
6,400.00 kJ/mol  
36
14th Energy Level
1,156.00 kJ/mol  
99+
6,400.00 kJ/mol  
26
15th Energy Level
80,000.00 kJ/mol  
17
64,000.00 kJ/mol  
36
16th Energy Level
58,700.00 kJ/mol  
39
64,000.00 kJ/mol  
27
17th Energy Level
1,110.00 kJ/mol  
20
641.00 kJ/mol  
99+
18th Energy Level
8,000.00 kJ/mol  
23
3,500.00 kJ/mol  
99+
19th Energy Level
1,110.00 kJ/mol  
17
627.60 kJ/mol  
99+
20th Energy Level
850.00 kJ/mol  
18
627.00 kJ/mol  
99+
21st Energy Level
800.00 kJ/mol  
99+
917.00 kJ/mol  
34
22nd Energy Level
380.00 kJ/mol  
99+
627.00 kJ/mol  
36
23rd Energy Level
8,000.00 kJ/mol  
9
6,410.00 kJ/mol  
12
24th Energy Level
565.60 kJ/mol  
99+
627.00 kJ/mol  
39
25th Energy Level
800.00 kJ/mol  
13
0.00 kJ/mol  
99+
26th Energy Level
800.00 kJ/mol  
13
601.20 kJ/mol  
99+
27th Energy Level
800.00 kJ/mol  
12
641.00 kJ/mol  
37
28th Energy Level
800.00 kJ/mol  
18
641.60 kJ/mol  
99+
29th Energy Level
800.00 kJ/mol  
18
641.00 kJ/mol  
99+
30th Energy Level
800.00 kJ/mol  
13
627.00 kJ/mol  
99+
Electrochemical Equivalent
3.00 g/amp-hr  
21
4.83 g/amp-hr  
4
Electron Work Function
4.90 eV  
12
4.90 eV  
12
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity  
Ionization, Radioactive Isotopes, Radioactivity  
Atomic
Atomic Number
109  
9
102  
16
Electron Configuration
[Rn] 5f14 6d7 7s2  
[Rn] 5f14 7s2  
Crystal Structure
Face Centered Cubic (FCC)  
Not Known  
Crystal Lattice
FCC-Crystal-Structure-of-Meitnerium.jpg#100  
Unknown-Crystal-Structure-of-Nobelium.jpg#100  
Atom
  
  
Number of Protons
109  
9
102  
16
Number of Neutrons
157  
8
157  
8
Number of Electrons
109  
9
102  
16
Radius of an Atom
  
  
Atomic Radius
122.00 pm  
99+
176.00 pm  
20
Covalent Radius
129.00 pm  
99+
157.00 pm  
33
Van der Waals Radius
260.00 pm  
9
246.00 pm  
12
Atomic Weight
278.00 amu  
7
259.00 amu  
13
Atomic Volume
20.20 cm3/mol  
30
19.80 cm3/mol  
33
Adjacent Atomic Numbers
  
  
Previous Element
Hassium
  
Mendelevium
  
Next Element
Darmstadtium
  
Lawrencium
  
Valence Electron Potential
31.20 (-eV)  
99+
26.00 (-eV)  
99+
Lattice Constant
0.00 pm  
99+
-  
Lattice Angles
-  
-  
Lattice C/A Ratio
1.59  
27
1.76  
5
Mechanical
Density
  
  
Density At Room Temperature
37.40 g/cm3  
2
9.90 g/cm3  
99+
Density When Liquid (at m.p.)
37.40 g/cm3  
2
9.90 g/cm3  
99+
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)  
28
Elasticity properties
  
  
Shear Modulus
35.00 GPa  
21
27.00 GPa  
34
Bulk Modulus
0.00 GPa  
99+
8.70 GPa  
99+
Young's Modulus
13.50 GPa  
99+
12.30 GPa  
99+
Poisson Ratio
0.25  
24
0.30  
14
Other Mechanical Properties
-  
-  
Magnetic
Magnetic Characteristics
  
  
Specific Gravity
37.40  
4
9.90  
99+
Magnetic Ordering
Paramagnetic  
-  
Permeability
0.00 H/m  
12
0.00 H/m  
3
Susceptibility
0.00  
24
0.00  
24
Electrical Properties
  
  
Electrical Property
-  
-  
Resistivity
0.35 nΩ·m  
99+
0.68 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+
0.10 J/(kg K)  
99+
Molar Heat Capacity
27.00 J/mol·K  
29
27.00 J/mol·K  
29
Thermal Conductivity
0.00 W/m·K  
99+
0.10 W/m·K  
99+
Critical Temperature
1,323.00 K  
99+
1,100.00 K  
99+
Thermal Expansion
10.30 µm/(m·K)  
99+
11.00 µm/(m·K)  
99+
Enthalpy
  
  
Enthalpy of Vaporization
110.00 kJ/mol  
99+
-  
Enthalpy of Fusion
-  
-  
Enthalpy of Atomization
350.20 kJ/mol  
37
390.40 kJ/mol  
30
Standard Molar Entropy
63.80 J/mol.K  
22
63.00 J/mol.K  
24
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