Periodic Table
Symbol
✔
✘
✔
✘
Group Number
NANA
0
17
👆🏻
Period Number
77
2
7
👆🏻
Block
f block
d block
Element Family
Actinide
Actinide
CAS Number
1002814522537195
7429905
54386242
👆🏻
Space Group Name
Not Available
Not Available
Space Group Number
NANA
11
229
👆🏻
Facts
Interesting Facts
- The most stable isotope of Nobelium metal is No-259.
- No-259 has a half-life of fifty-eight minutes.
- It is synthetically produced metal.
- Radiation hazard can be produce by it.
Sources
Bombarding Curium-246 or Curium-249 with Carbon-12 Nuclei, Found in Minerals, Mining
Bombarding Californium-252 with Boron Nuclei, Found in Minerals, Mining
History
Who Discovered
Joint Institute for Nuclear Research
Lawrence Berkeley National Laboratory and Joint Institute for Nuclear Research
Discovery
In 1966
In 1961–1971
Abundance
Abundance In Universe
NANA
5E-09
0.11
👆🏻
Abundance In Sun
NANA
1E-08
0.1
👆🏻
Abundance In Meteorites
NANA
1.7E-07
22
👆🏻
Abundance In Earth's Crust
NANA
9.9E-12
8.1
👆🏻
Abundance In Oceans
NANA
2E-23
1.1
👆🏻
Abundance In Humans
NANA
1E-13
1.4
👆🏻
Uses
Uses & Benefits
- Currently known uses of Nobelium metal are limited to research purpose only.
- Currently known uses of Lawrencium metal are limited to research purpose only.
Industrial Uses
NA
NA
Medical Uses
NA
NA
Other Uses
Research Purposes
NA
Biological Properties
Toxicity
Unknown
Unknown
Present in Human Body
✔
✘
✔
✘
In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
0
1970
👆🏻
In Bone
0.00 p.p.m.0.00 p.p.m.
0
170000
👆🏻
Physical
Melting Point
827.00 °C1,627.00 °C
27
3410
👆🏻
Boiling Point
NANA
147
5660
👆🏻
Appearance
Physical State
Solid
Solid
Color
Unknown
Silver
Luster
Unknown Luster
Unknown Luster
Hardness
Mohs Hardness
NANA
0.2
8.5
👆🏻
Brinell Hardness
NANA
0.14
3490
👆🏻
Vickers Hardness
NANA
121
3430
👆🏻
Speed of Sound
NANA
818
16200
👆🏻
Optical Properties
Refractive Index
NANA
1.000933
1.7229
👆🏻
Reflectivity
NANA
58
97
👆🏻
Allotropes
✔
✘
✔
✘
α Allotropes
Not Available
Not Available
β Allotropes
Not Available
Not Available
γ Allotropes
Not Available
Not Available
Chemical
Chemical Formula
✔
✘
✔
✘
Isotopes
Known Isotopes
1310
0
38
👆🏻
Electronegativity
Pauling Electronegativity
1.30NA
0.7
2.54
👆🏻
Sanderson Electronegativity
NANA
0.22
2.56
👆🏻
Allred Rochow Electronegativity
1.20NA
0.86
1.82
👆🏻
Mulliken-Jaffe Electronegativity
NANA
0.62
2.48
👆🏻
Allen Electronegativity
NANA
0.659
2.7
👆🏻
Electropositivity
Pauling Electropositivity
2.70NA
1.46
3.3
👆🏻
Ionization Energies
1st Energy Level
642.00 kJ/mol470.00 kJ/mol
375.7
26130
👆🏻
2nd Energy Level
1,254.00 kJ/mol1,428.00 kJ/mol
710.2162
28750
👆🏻
3rd Energy Level
2,643.00 kJ/mol2,228.00 kJ/mol
1600
34230
👆🏻
4th Energy Level
3,956.00 kJ/mol4,910.00 kJ/mol
2780
37066
👆🏻
5th Energy Level
NANA
4305.2
97510
👆🏻
6th Energy Level
NANA
5715.8
105800
👆🏻
7th Energy level
NANA
7226.8
114300
👆🏻
8th Energy Level
NANA
8857.4
125300
👆🏻
9th Energy Level
NANA
14110
134700
👆🏻
10th Energy Level
NANA
17100
144300
👆🏻
11th Energy Level
NANA
19900
169988
👆🏻
12th Energy Level
NANA
22219
189368
👆🏻
13th Energy Level
NANA
26930
76015
👆🏻
14th Energy Level
NANA
29196
86450
👆🏻
15th Energy Level
NANA
41987
97510
👆🏻
16th Energy Level
NANA
47206
109480
👆🏻
17th Energy Level
NANA
52737
122200
👆🏻
18th Energy Level
NANA
58570
134810
👆🏻
19th Energy Level
NANA
64702
148700
👆🏻
20th Energy Level
NANA
80400
171200
👆🏻
21st Energy Level
NANA
87000
179100
👆🏻
22nd Energy Level
NANA
93400
184900
👆🏻
23rd Energy Level
NANA
98420
198800
👆🏻
24th Energy Level
NANA
104400
195200
👆🏻
25th Energy Level
NANA
121900
121900
👆🏻
26th Energy Level
NANA
127700
127700
👆🏻
27th Energy Level
NANA
133800
133800
👆🏻
28th Energy Level
NANA
139800
139800
👆🏻
29th Energy Level
NANA
148100
148100
👆🏻
30th Energy Level
NANA
154500
154500
👆🏻
Electrochemical Equivalent
4.83 g/amp-hr3.23 g/amp-hr
0.16812
8.3209
👆🏻
Electron Work Function
NANA
2.14
5.65
👆🏻
Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity
Ionization, Radioactive Isotopes
Atomic
Atomic Number
102103
3
117
👆🏻
Electron Configuration
[Rn] 5f14 7s2
[Rn] 5f14 7s2 7p1
Crystal Structure
Not Known
Hexagonal Close Packed (HCP)
Crystal Lattice
Atom
Number of Protons
102103
3
117
👆🏻
Number of Neutrons
157157
4
184
👆🏻
Number of Electrons
102103
3
117
👆🏻
Radius of an Atom
Atomic Radius
NANA
112
265
👆🏻
Covalent Radius
NANA
96
260
👆🏻
Van der Waals Radius
246.00 pm246.00 pm
139
348
👆🏻
Atomic Weight
259.00 amu266.00 amu
6.94
294
👆🏻
Atomic Volume
NANA
1.39
71.07
👆🏻
Adjacent Atomic Numbers
Previous Element
Next Element
Valence Electron Potential
26.00 (-eV)NA
8
392.42
👆🏻
Lattice Constant
NANA
228.58
891.25
👆🏻
Lattice Angles
NA
NA
Lattice C/A Ratio
NANA
1.567
1.886
👆🏻
Mechanical
Density
Density At Room Temperature
NANA
0.534
40.7
👆🏻
Density When Liquid (at m.p.)
NANA
0.512
20
👆🏻
Tensile Strength
NANA
2.5
11000
👆🏻
Viscosity
NANA
0.001526
0.001526
👆🏻
Vapor Pressure
Vapor Pressure at 1000 K
NANA
2.47E-11
121
👆🏻
Vapor Pressure at 2000 K
NANA
2.62E-10
774
👆🏻
Elasticity properties
Shear Modulus
NANA
1.3
222
👆🏻
Bulk Modulus
NANA
1.6
462
👆🏻
Young's Modulus
NANA
1.7
528
👆🏻
Poisson Ratio
NA0.32
0.032
0.47
👆🏻
Other Mechanical Properties
Unknown
Unknown
Magnetic
Magnetic Characteristics
Specific Gravity
NANA
0.53
4500
👆🏻
Magnetic Ordering
Unknown
Unknown
Permeability
NANA
1.25643E-06
0.0063
👆🏻
Susceptibility
NANA
-0.000166
200000
👆🏻
Electrical Properties
Electrical Property
Unknown
Unknown
Resistivity
NANA
0.18
961
👆🏻
Electrical Conductivity
NANA
0.00666
0.63
👆🏻
Electron Affinity
NANA
0
222.8
👆🏻
Thermal
Specific Heat
NANA
0.11
3.6
👆🏻
Molar Heat Capacity
NANA
16.443
62.7
👆🏻
Thermal Conductivity
NANA
6.3
429
👆🏻
Critical Temperature
NANA
26.3
3223
👆🏻
Thermal Expansion
NANA
4.5
97
👆🏻
Enthalpy
Enthalpy of Vaporization
NANA
7.32
799.1
👆🏻
Enthalpy of Fusion
NANA
2.1
35.23
👆🏻
Enthalpy of Atomization
NANA
61.5
837
👆🏻
Standard Molar Entropy
NANA
9.5
198.1
👆🏻