×

Neptunium
Neptunium

Rutherfordium
Rutherfordium



ADD
Compare
X
Neptunium
X
Rutherfordium

Neptunium Rutherfordium Comparison

1 Periodic Table
1.1 Symbol
Np
Rf
1.2 Group Number
NA4
Gadolinium Metal
0 17
1.4 Period Number
77
Lithium Metal
2 7
1.6 Block
f block
d block
1.7 Element Family
Actinide
Transition Metal
1.8 CAS Number
743999853850365
Aluminium Metal
7429905 54386242
2.2 Space Group Name
Pnma
Not Available
2.3 Space Group Number
62.00NA
Plutonium Metal
11 229
3 Facts
3.1 Interesting Facts
Not Available
  • Rutherfordium does not occur in nature as it is a synthetic element.
  • Till date Rutherfordium metal has 15 radioisotopes created synthetically.
3.2 Sources
Made by Bombarding Uranium with Neutrons, Ores of metals
Bombarding Plutonium with Accelerated 113 to 115 MeV Neon Ions, Synthetically Produced
3.3 History
3.3.1 Who Discovered
Edwin McMillan and Philip H. Abelson
Joint Institute for Nuclear Research
3.3.2 Discovery
In 1940
In 1964
3.4 Abundance
3.4.1 Abundance In Universe
NANA
Thallium Metal
5E-09 0.11
3.4.2 Abundance In Sun
~-9999 %~-9999 %
Beryllium Metal
1E-08 0.1
1.2.2 Abundance In Meteorites
NANA
Gold Metal
1.7E-07 22
1.3.2 Abundance In Earth's Crust
NANA
Radium Metal
9.9E-12 8.1
1.9.1 Abundance In Oceans
NANA
Protactinium Metal
2E-23 1.1
1.9.3 Abundance In Humans
NANA
Radium Metal
1E-13 1.4
3 Uses
3.1 Uses & Benefits
  • Currently known uses of Neptunium metal are limited to research purpose only.
  • Neptunium’s isotope neptunium-237 is used as a neutron detectors.
  • Currently known uses of Rutherfordium metal are limited to research purpose only.
3.1.1 Industrial Uses
NA
NA
3.1.2 Medical Uses
NA
NA
3.1.3 Other Uses
Alloys, Nuclear Research, Research Purposes
Alloys, Research Purposes
3.2 Biological Properties
3.2.1 Toxicity
Toxic
Unknown
3.2.2 Present in Human Body
3.2.3 In Blood
0.00 Blood/mg dm-30.00 Blood/mg dm-3
Plutonium Metal
0 1970
3.3.2 In Bone
0.00 p.p.m.0.00 p.p.m.
Plutonium Metal
0 170000
4 Physical
4.1 Melting Point
640.00 °C2,100.00 °C
Francium Metal
27 3410
4.4 Boiling Point
3,902.00 °C5,500.00 °C
Flerovium Metal
147 5660
4.6 Appearance
4.6.1 Physical State
Solid
Solid
4.6.2 Color
Silver
Unknown
4.6.3 Luster
Metallic
Unknown Luster
4.7 Hardness
4.7.1 Mohs Hardness
NANA
Cesium Metal
0.2 8.5
5.4.4 Brinell Hardness
NANA
Cesium Metal
0.14 3490
6.1.3 Vickers Hardness
NANA
Palladium Metal
121 3430
7.2 Speed of Sound
NANA
Thallium Metal
818 16200
7.5 Optical Properties
7.5.1 Refractive Index
NANA
Mercury Metal
1.000933 1.7229
7.5.2 Reflectivity
NANA
Molybdenum Metal
58 97
7.9 Allotropes
7.9.1 α Allotropes
Not Available
Not Available
7.9.2 β Allotropes
Not Available
Not Available
7.9.3 γ Allotropes
Not Available
Not Available
8 Chemical
8.1 Chemical Formula
Np
Rf
8.2 Isotopes
8.2.1 Known Isotopes
2013
Tennessine Metal
0 38
8.4 Electronegativity
8.4.1 Pauling Electronegativity
1.36NA
Francium Metal
0.7 2.54
8.4.3 Sanderson Electronegativity
NANA
Cesium Metal
0.22 2.56
8.6.1 Allred Rochow Electronegativity
1.22NA
Cesium Metal
0.86 1.82
8.6.3 Mulliken-Jaffe Electronegativity
NANA
Cesium Metal
0.62 2.48
8.7.4 Allen Electronegativity
NANA
Cesium Metal
0.659 2.7
9.3 Electropositivity
9.3.1 Pauling Electropositivity
2.64NA
Gold Metal
1.46 3.3
9.6 Ionization Energies
9.6.1 1st Energy Level
604.50 kJ/mol579.90 kJ/mol
Cesium Metal
375.7 26130
10.1.2 2nd Energy Level
1,128.00 kJ/mol1,389.40 kJ/mol
Ruthenium Metal
710.2162 28750
10.1.6 3rd Energy Level
1,997.00 kJ/mol2,296.40 kJ/mol
Osmium Metal
1600 34230
10.1.9 4th Energy Level
3,242.00 kJ/mol3,077.90 kJ/mol
Thorium Metal
2780 37066
10.2.4 5th Energy Level
NANA
Dubnium Metal
4305.2 97510
10.2.7 6th Energy Level
NANA
Seaborgium Metal
5715.8 105800
10.2.8 7th Energy level
NANA
Bohrium Metal
7226.8 114300
10.3.3 8th Energy Level
NANA
Hassium Metal
8857.4 125300
10.4.2 9th Energy Level
NANA
Yttrium Metal
14110 134700
11.1.2 10th Energy Level
NANA
Strontium Metal
17100 144300
11.2.1 11th Energy Level
NANA
Yttrium Metal
19900 169988
11.3.1 12th Energy Level
NANA
Molybdenum Metal
22219 189368
11.3.3 13th Energy Level
NANA
Molybdenum Metal
26930 76015
11.4.2 14th Energy Level
NANA
Molybdenum Metal
29196 86450
11.5.2 15th Energy Level
NANA
Manganese Metal
41987 97510
11.6.2 16th Energy Level
NANA
Iron Metal
47206 109480
11.6.4 17th Energy Level
NANA
Cobalt Metal
52737 122200
11.6.7 18th Energy Level
NANA
Nickel Metal
58570 134810
11.6.8 19th Energy Level
NANA
Copper Metal
64702 148700
11.6.11 20th Energy Level
NANA
Molybdenum Metal
80400 171200
11.6.13 21st Energy Level
NANA
Molybdenum Metal
87000 179100
11.7.1 22nd Energy Level
NANA
Molybdenum Metal
93400 184900
11.7.3 23rd Energy Level
NANA
Molybdenum Metal
98420 198800
11.7.5 24th Energy Level
NANA
Molybdenum Metal
104400 195200
11.7.6 25th Energy Level
NANA
Molybdenum Metal
121900 121900
11.7.8 26th Energy Level
NANA
Molybdenum Metal
127700 127700
11.7.10 27th Energy Level
NANA
Molybdenum Metal
133800 133800
11.7.12 28th Energy Level
NANA
Molybdenum Metal
139800 139800
11.7.13 29th Energy Level
NANA
Molybdenum Metal
148100 148100
11.7.15 30th Energy Level
NANA
Molybdenum Metal
154500 154500
11.8 Electrochemical Equivalent
1.77 g/amp-hrNA
Beryllium Metal
0.16812 8.3209
11.9 Electron Work Function
NANA
Cesium Metal
2.14 5.65
11.10 Other Chemical Properties
Ionization, Radioactive Isotopes, Radioactivity, Solubility
Ionization, Radioactive Isotopes, Radioactivity
12 Atomic
12.1 Atomic Number
93104
Lithium Metal
3 117
12.2 Electron Configuration
[Rn] 5f4 6d1 7s2
[Rn] 5f14 6d2 7s2
12.3 Crystal Structure
Orthorhombic (ORTH)
Hexagonal Close Packed (HCP)
12.3.1 Crystal Lattice
12.4 Atom
12.4.1 Number of Protons
93104
Lithium Metal
3 117
12.4.4 Number of Neutrons
144157
Lithium Metal
4 184
12.4.7 Number of Electrons
93104
Lithium Metal
3 117
12.6 Radius of an Atom
12.6.1 Atomic Radius
155.00 pm150.00 pm
Beryllium Metal
112 265
12.6.2 Covalent Radius
190.00 pm157.00 pm
Beryllium Metal
96 260
12.7.1 Van der Waals Radius
221.00 pmNA
Zinc Metal
139 348
13.2 Atomic Weight
237.00 amu267.00 amu
Lithium Metal
6.94 294
13.6 Atomic Volume
11.62 cm3/molNA
Manganese Metal
1.39 71.07
13.7 Adjacent Atomic Numbers
13.7.1 Previous Element
13.7.2 Next Element
13.8 Valence Electron Potential
96.00 (-eV)NA
Francium Metal
8 392.42
13.9 Lattice Constant
666.30 pmNA
Beryllium Metal
228.58 891.25
13.11 Lattice Angles
π/2, π/2, π/2
NA
13.12 Lattice C/A Ratio
NANA
Beryllium Metal
1.567 1.886
14 Mechanical
14.1 Density
14.1.1 Density At Room Temperature
19.38 g/cm323.20 g/cm3
Lithium Metal
0.534 40.7
14.1.3 Density When Liquid (at m.p.)
NANA
Lithium Metal
0.512 20
14.3 Tensile Strength
125.00 MPaNA
Indium Metal
2.5 11000
14.5 Viscosity
NANA
Mercury Metal
0.001526 0.001526
14.6 Vapor Pressure
14.6.1 Vapor Pressure at 1000 K
NANA
Cerium Metal
2.47E-11 121
14.8.1 Vapor Pressure at 2000 K
0.11 (Pa)NA
Tungsten Metal
2.62E-10 774
14.10 Elasticity properties
14.10.1 Shear Modulus
NANA
Potassium Metal
1.3 222
15.1.2 Bulk Modulus
NANA
Cesium Metal
1.6 462
15.1.3 Young's Modulus
NANA
Cesium Metal
1.7 528
15.2 Poisson Ratio
NANA
Beryllium Metal
0.032 0.47
15.4 Other Mechanical Properties
Ductile
Unknown
16 Magnetic
16.1 Magnetic Characteristics
16.1.1 Specific Gravity
20.25NA
Lithium Metal
0.53 4500
16.2.2 Magnetic Ordering
Paramagnetic
Unknown
16.2.3 Permeability
NANA
Bismuth Metal
1.25643E-06 0.0063
16.2.4 Susceptibility
NANA
Bismuth Metal
-0.000166 200000
16.3 Electrical Properties
16.3.1 Electrical Property
Conductor
Unknown
16.3.2 Resistivity
1.22 nΩ·mNA
Thallium Metal
0.18 961
16.4.2 Electrical Conductivity
0.01 106/cm ΩNA
Plutonium Metal
0.00666 0.63
16.4.4 Electron Affinity
NANA
Mercury Metal
0 222.8
17 Thermal
17.1 Specific Heat
0.12 J/(kg K)NA
Americium Metal
0.11 3.6
17.3 Molar Heat Capacity
29.46 J/mol·KNA
Beryllium Metal
16.443 62.7
18.2 Thermal Conductivity
6.30 W/m·KNA
Palladium
6.3 429
18.3 Critical Temperature
NANA
Ytterbium Metal
26.3 3223
18.5 Thermal Expansion
NANA
Tungsten Metal
4.5 97
18.6 Enthalpy
18.6.1 Enthalpy of Vaporization
NANA
Zinc Metal
7.32 799.1
18.6.2 Enthalpy of Fusion
3.20 kJ/molNA
Cesium Metal
2.1 35.23
18.6.4 Enthalpy of Atomization
NANA
Mercury Metal
61.5 837
19.3 Standard Molar Entropy
NANA
Beryllium Metal
9.5 198.1