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Nobelium


Periodic Table
Symbol
No
Group Number
3 15
Period Number
7 1
Block
f block
Element Family
Actinide
CAS Number
10028145 16
Space Group Name
-
Space Group Number
194.00 7
Facts
Interesting Facts
  • The most stable isotope of Nobelium metal is No-259.
  • No-259 has a half-life of fifty-eight minutes.
Sources
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining
History
Who Discovered
Joint Institute for Nuclear Research
Discovery
In 1966
Abundance
Abundance In Universe
-
Abundance In Sun
-
Abundance In Meteorites
-
Abundance In Earth's Crust
-
Abundance In Oceans
-
Abundance In Humans
-
Uses
Uses & Benefits
  • 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
In Blood
0.00 Blood/mg dm-3 40
In Bone
0.00 p.p.m. 41
Physical
Melting Point
827.00 °C 53
Boiling Point
2,600.00 °C 44
Appearance
Physical State
Solid
Color
-
Luster
Unknown Luster
Hardness
Mohs Hardness
-
Brinell Hardness
500.00 MPa 28
Vickers Hardness
500.00 MPa 35
Speed of Sound
1,100.00 m/s 71
Optical Properties
Refractive Index
1.30 43
Reflectivity
61.00 % 22
Allotropes
No
α Allotropes
-
β Allotropes
-
γ Allotropes
-
Chemical
Chemical Formula
No
Isotopes
Known Isotopes
13 26
Electronegativity
Pauling Electronegativity
1.30 33
Sanderson Electronegativity
1.30 25
Allred Rochow Electronegativity
1.20 28
Mulliken-Jaffe Electronegativity
1.30 33
Allen Electronegativity
1.10 55
Electropositivity
Pauling Electropositivity
2.70 22
Ionization Energies
1st Energy Level
642.00 kJ/mol 43
2nd Energy Level
1,254.00 kJ/mol 57
3rd Energy Level
2,643.00 kJ/mol 43
4th Energy Level
3,956.00 kJ/mol 49
5th Energy Level
6,400.00 kJ/mol 35
6th Energy Level
6,400.00 kJ/mol 51
7th Energy level
6,270.00 kJ/mol 47
8th Energy Level
6,270.00 kJ/mol 45
9th Energy Level
6,270.00 kJ/mol 43
10th Energy Level
6,270.00 kJ/mol 43
11th Energy Level
6,420.00 kJ/mol 43
12th Energy Level
64,000.00 kJ/mol 8
13th Energy Level
6,400.00 kJ/mol 36
14th Energy Level
6,400.00 kJ/mol 26
15th Energy Level
64,000.00 kJ/mol 36
16th Energy Level
64,000.00 kJ/mol 27
17th Energy Level
641.00 kJ/mol 47
18th Energy Level
3,500.00 kJ/mol 81
19th Energy Level
627.60 kJ/mol 46
20th Energy Level
627.00 kJ/mol 42
21st Energy Level
917.00 kJ/mol 34
22nd Energy Level
627.00 kJ/mol 36
23rd Energy Level
6,410.00 kJ/mol 12
24th Energy Level
627.00 kJ/mol 39
25th Energy Level
0.00 kJ/mol 81
26th Energy Level
601.20 kJ/mol 45
27th Energy Level
641.00 kJ/mol 37
28th Energy Level
641.60 kJ/mol 42
29th Energy Level
641.00 kJ/mol 43
30th Energy Level
627.00 kJ/mol 43
Electrochemical Equivalent
4.83 g/amp-hr 4
Electron Work Function
4.90 eV 12
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Atomic
Atomic Number
102 16
Electron Configuration
[Rn] 5f14 7s2
Crystal Structure
Not Known
Crystal Lattice
Unknown-Crystal-Structure-of-Nobelium.jpg#100
Atom
Number of Protons
102 16
Number of Neutrons
157 8
Number of Electrons
102 16
Radius of an Atom
Atomic Radius
176.00 pm 20
Covalent Radius
157.00 pm 33
Van der Waals Radius
246.00 pm 12
Atomic Weight
259.00 amu 13
Atomic Volume
19.80 cm3/mol 33
Adjacent Atomic Numbers
Previous Element
87
Next Element
82
Valence Electron Potential
26.00 (-eV) 58
Lattice Constant
-
Lattice Angles
-
Lattice C/A Ratio
1.76 5
Mechanical
Density
Density At Room Temperature
9.90 g/cm3 41
Density When Liquid (at m.p.)
9.90 g/cm3 42
Tensile Strength
80.00 MPa 29
Viscosity
0.00 25
Vapor Pressure
Vapor Pressure at 1000 K
0.00 (Pa) 37
Vapor Pressure at 2000 K
0.00 (Pa) 28
Elasticity properties
Shear Modulus
27.00 GPa 34
Bulk Modulus
8.70 GPa 60
Young's Modulus
12.30 GPa 62
Poisson Ratio
0.30 14
Other Mechanical Properties
-
Magnetic
Magnetic Characteristics
Specific Gravity
9.90 42
Magnetic Ordering
-
Permeability
0.00 H/m 3
Susceptibility
0.00 24
Electrical Properties
Electrical Property
-
Resistivity
0.68 nΩ·m 79
Electrical Conductivity
0.00 106/cm Ω 71
Electron Affinity
50.00 kJ/mol 26
Thermal
Specific Heat
0.10 J/(kg K) 44
Molar Heat Capacity
27.00 J/mol·K 29
Thermal Conductivity
0.10 W/m·K 79
Critical Temperature
1,100.00 K 56
Thermal Expansion
11.00 µm/(m·K) 49
Enthalpy
Enthalpy of Vaporization
-
Enthalpy of Fusion
-
Enthalpy of Atomization
390.40 kJ/mol 30
Standard Molar Entropy
63.00 J/mol.K 24
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