×

Seaborgium
Seaborgium

Neptunium
Neptunium



ADD
Compare
X
Seaborgium
X
Neptunium

Seaborgium Neptunium Comparison

1 Periodic Table
1.1 Symbol
Sg
Np
1.2 Group Number
6NA
Gadolinium Metal
0 17
1.3 Period Number
77
Lithium Metal
2 7
1.4 Block
d block
f block
1.5 Element Family
Transition Metal
Actinide
1.6 CAS Number
540388127439998
Aluminium Metal
7429905 54386242
1.7 Space Group Name
Not Available
Pnma
1.8 Space Group Number
NA62.00
Plutonium Metal
11 229
2 Facts
2.1 Interesting Facts
  • Seaborgium most stable isotope is Sg and it has 2.1 min of half- life.
  • And other isotopes of Seaborgium have half-lives as short as 3 ms.
Not Available
2.2 Sources
Synthetically Produced
Made by Bombarding Uranium with Neutrons, Ores of metals
2.3 History
2.3.1 Who Discovered
Lawrence Berkeley National Laboratory
Edwin McMillan and Philip H. Abelson
2.3.2 Discovery
In 1974
In 1940
2.4 Abundance
2.4.1 Abundance In Universe
NANA
Thallium Metal
5E-09 0.11
2.4.2 Abundance In Sun
~-9999 %~-9999 %
Beryllium Metal
1E-08 0.1
2.4.3 Abundance In Meteorites
NANA
Gold Metal
1.7E-07 22
1.4.2 Abundance In Earth's Crust
NANA
Radium Metal
9.9E-12 8.1
1.4.4 Abundance In Oceans
NANA
Protactinium Metal
2E-23 1.1
1.4.5 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
2 Uses
2.1 Uses & Benefits
  • Currently known uses of Seaborgium metal are limited to research purpose only.
  • Currently known uses of Neptunium metal are limited to research purpose only.
  • Neptunium’s isotope neptunium-237 is used as a neutron detectors.
2.1.1 Industrial Uses
NA
NA
2.1.3 Medical Uses
NA
NA
2.1.4 Other Uses
Research Purposes
Alloys, Nuclear Research, Research Purposes
2.2 Biological Properties
2.2.1 Toxicity
Unknown
Toxic
2.2.2 Present in Human Body
2.2.3 In Blood
NA0.00 Blood/mg dm-3
Plutonium Metal
0 1970
2.2.4 In Bone
NA0.00 p.p.m.
Plutonium Metal
0 170000
3 Physical
3.1 Melting Point
NA640.00 °C
Francium Metal
27 3410
3.2 Boiling Point
NA3,902.00 °C
Flerovium Metal
147 5660
3.3 Appearance
3.3.1 Physical State
Solid
Solid
3.3.2 Color
Unknown
Silver
3.3.3 Luster
Unknown Luster
Metallic
3.4 Hardness
3.4.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
3.4.2 Brinell Hardness
NANA
Cesium Metal
0.14 3490
3.4.3 Vickers Hardness
NANA
Palladium Metal
121 3430
3.5 Speed of Sound
NANA
Thallium Metal
818 16200
3.6 Optical Properties
3.6.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
3.6.2 Reflectivity
NANA
Molybdenum Metal
58 97
3.7 Allotropes
3.7.1 α Allotropes
Not Available
Not Available
3.7.2 β Allotropes
Not Available
Not Available
3.7.3 γ Allotropes
Not Available
Not Available
4 Chemical
4.1 Chemical Formula
Sg
Np
4.2 Isotopes
4.2.1 Known Isotopes
920
Tennessine Metal
0 38
4.3 Electronegativity
4.3.1 Pauling Electronegativity
NA1.36
Francium Metal
0.7 2.54
4.3.2 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
4.3.3 Allred Rochow Electronegativity
NA1.22
Cesium Metal
0.86 1.82
4.3.4 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
4.3.5 Allen Electronegativity
NANA
Cesium Metal
0.659 2.7
4.4 Electropositivity
4.4.1 Pauling Electropositivity
NA2.64
Gold Metal
1.46 3.3
4.5 Ionization Energies
4.5.1 1st Energy Level
757.40 kJ/mol604.50 kJ/mol
Cesium Metal
375.7 26130
4.5.2 2nd Energy Level
1,732.90 kJ/mol1,128.00 kJ/mol
Ruthenium Metal
710.2162 28750
4.5.3 3rd Energy Level
2,483.50 kJ/mol1,997.00 kJ/mol
Osmium Metal
1600 34230
4.5.4 4th Energy Level
3,415.60 kJ/mol3,242.00 kJ/mol
Thorium Metal
2780 37066
4.5.5 5th Energy Level
4,561.80 kJ/molNA
Dubnium Metal
4305.2 97510
4.5.6 6th Energy Level
5,715.80 kJ/molNA
Sodium
5715.8 105800
4.5.7 7th Energy level
NANA
Bohrium Metal
7226.8 114300
4.5.8 8th Energy Level
NANA
Hassium Metal
8857.4 125300
4.5.9 9th Energy Level
NANA
Yttrium Metal
14110 134700
4.5.10 10th Energy Level
NANA
Strontium Metal
17100 144300
4.5.11 11th Energy Level
NANA
Yttrium Metal
19900 169988
4.5.12 12th Energy Level
NANA
Molybdenum Metal
22219 189368
4.5.13 13th Energy Level
NANA
Molybdenum Metal
26930 76015
4.5.14 14th Energy Level
NANA
Molybdenum Metal
29196 86450
4.5.15 15th Energy Level
NANA
Manganese Metal
41987 97510
4.5.16 16th Energy Level
NANA
Iron Metal
47206 109480
4.5.17 17th Energy Level
NANA
Cobalt Metal
52737 122200
4.5.18 18th Energy Level
NANA
Nickel Metal
58570 134810
4.5.19 19th Energy Level
NANA
Copper Metal
64702 148700
4.5.20 20th Energy Level
NANA
Molybdenum Metal
80400 171200
4.5.21 21st Energy Level
NANA
Molybdenum Metal
87000 179100
4.5.22 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
4.5.23 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
4.5.24 24th Energy Level
NANA
Molybdenum Metal
104400 195200
4.5.25 25th Energy Level
NANA
Molybdenum Metal
121900 121900
4.5.26 26th Energy Level
NANA
Molybdenum Metal
127700 127700
4.5.27 27th Energy Level
NANA
Molybdenum Metal
133800 133800
4.5.28 28th Energy Level
NANA
Molybdenum Metal
139800 139800
4.5.29 29th Energy Level
NANA
Molybdenum Metal
148100 148100
4.5.30 30th Energy Level
NANA
Molybdenum Metal
154500 154500
4.6 Electrochemical Equivalent
NA1.77 g/amp-hr
Beryllium Metal
0.16812 8.3209
4.7 Electron Work Function
NANA
Cesium Metal
2.14 5.65
4.8 Other Chemical Properties
NA
Ionization, Radioactive Isotopes, Radioactivity, Solubility
5 Atomic
5.1 Atomic Number
10693
Lithium Metal
3 117
5.2 Electron Configuration
[Rn] 5f14 6d2 7s2
[Rn] 5f4 6d1 7s2
5.3 Crystal Structure
Body Centered Cubic (BCC)
Orthorhombic (ORTH)
5.3.1 Crystal Lattice
5.4 Atom
5.4.1 Number of Protons
10693
Lithium Metal
3 117
5.4.2 Number of Neutrons
157144
Lithium Metal
4 184
5.4.3 Number of Electrons
10693
Lithium Metal
3 117
5.5 Radius of an Atom
5.5.1 Atomic Radius
132.00 pm155.00 pm
Beryllium Metal
112 265
5.5.2 Covalent Radius
143.00 pm190.00 pm
Beryllium Metal
96 260
5.5.3 Van der Waals Radius
NA221.00 pm
Zinc Metal
139 348
5.6 Atomic Weight
269.00 amu237.00 amu
Lithium Metal
6.94 294
5.7 Atomic Volume
NA11.62 cm3/mol
Manganese Metal
1.39 71.07
5.8 Adjacent Atomic Numbers
5.8.1 Previous Element
5.8.2 Next Element
5.9 Valence Electron Potential
NA96.00 (-eV)
Francium Metal
8 392.42
5.10 Lattice Constant
NA666.30 pm
Beryllium Metal
228.58 891.25
5.11 Lattice Angles
Unknown
π/2, π/2, π/2
5.12 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
6 Mechanical
6.1 Density
6.1.1 Density At Room Temperature
35.00 g/cm319.38 g/cm3
Lithium Metal
0.534 40.7
1.2.1 Density When Liquid (at m.p.)
NANA
Lithium Metal
0.512 20
1.4 Tensile Strength
NA125.00 MPa
Indium Metal
2.5 11000
1.8 Viscosity
NANA
Mercury Metal
0.001526 0.001526
1.11 Vapor Pressure
1.11.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
1.11.2 Vapor Pressure at 2000 K
NA0.11 (Pa)
Tungsten Metal
2.62E-10 774
2.5 Elasticity properties
2.5.1 Shear Modulus
NANA
Potassium Metal
1.3 222
2.5.3 Bulk Modulus
NANA
Cesium Metal
1.6 462
2.5.6 Young's Modulus
NANA
Cesium Metal
1.7 528
2.6 Poisson Ratio
NANA
Beryllium Metal
0.032 0.47
2.7 Other Mechanical Properties
Unknown
Ductile
3 Magnetic
3.1 Magnetic Characteristics
3.1.1 Specific Gravity
NA20.25
Lithium Metal
0.53 4500
4.2.4 Magnetic Ordering
Unknown
Paramagnetic
4.2.5 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
4.2.6 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
4.3 Electrical Properties
4.3.1 Electrical Property
Unknown
Conductor
4.3.2 Resistivity
NA1.22 nΩ·m
Thallium Metal
0.18 961
5.1.1 Electrical Conductivity
NA0.01 106/cm Ω
Plutonium Metal
0.00666 0.63
5.4.2 Electron Affinity
NANA
Mercury Metal
0 222.8
6 Thermal
6.1 Specific Heat
NA0.12 J/(kg K)
Americium Metal
0.11 3.6
6.2 Molar Heat Capacity
NA29.46 J/mol·K
Beryllium Metal
16.443 62.7
6.3 Thermal Conductivity
NA6.30 W/m·K
Palladium
6.3 429
6.5 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
6.7 Thermal Expansion
NANA
Tungsten Metal
4.5 97
7.3 Enthalpy
7.3.1 Enthalpy of Vaporization
NANA
Zinc Metal
7.32 799.1
7.4.2 Enthalpy of Fusion
NA3.20 kJ/mol
Cesium Metal
2.1 35.23
7.4.4 Enthalpy of Atomization
NANA
Mercury Metal
61.5 837
7.5 Standard Molar Entropy
NANA
Beryllium Metal
9.5 198.1