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Moscovium Neptunium Comparison


Neptunium Moscovium comparison


Periodic Table

Symbol
Mc   
Np   

Group Number
15   
3
Not Available   

Period Number
7   
7   

Block
p block   
f block   

Element Family
Probably Post-​Transition   
Actinide   

CAS Number
54085642   
4
7439998   
99+

Space Group Name
Not Available   
Pnma   

Space Group Number
Not Available   
62.00   
11

Facts

Interesting Facts
Not Available   
Not Available   

Sources
Synthetically Produced   
Made by Bombarding Uranium with Neutrons, Ores of metals   

History
  
  

Who Discovered
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory   
Edwin McMillan and Philip H. Abelson   

Discovery
In 2003   
In 1940   

Abundance
  
  

Uses

Uses & Benefits
  • Currently known uses of Ununpentium 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.
  

Industrial Uses
NA   
NA   

Medical Uses
NA   
NA   

Other Uses
Research Purposes   
Alloys, Nuclear Research, Research Purposes   

Biological Properties
  
  

Toxicity
Unknown   
Toxic   

Present in Human Body
No   
No   

In Blood
Not Available   
0.00 Blood/mg dm-3   
37

In Bone
Not Available   
0.00 p.p.m.   
36

Physical Properties

Melting Point
400.00 °C   
99+
640.00 °C   
99+

Boiling Point
1,100.00 °C   
99+
3,902.00 °C   
13

Appearance
  
  

Physical State
Solid   
Solid   

Color
Unknown   
Silver   

Luster
Unknown Luster   
Metallic   

Hardness
  
  

Speed of Sound
Not Available   
Not Available   

Optical Properties
  
  

Allotropes
No   
No   

α Allotropes
Not Available   
Not Available   

β Allotropes
Not Available   
Not Available   

γ Allotropes
Not Available   
Not Available   

Chemical Properties

Chemical Formula
Mc   
Np   

Isotopes
  
  

Known Isotopes
5   
32
20   
19

Electronegativity
  
  

Pauling Electronegativity
Not Available   
1.36   
29

Allred Rochow Electronegativity
Not Available   
1.22   
26

Electropositivity
  
  

Pauling Electropositivity
Not Available   
2.64   
25

Ionization Energies
  
  

1st Energy Level
538.40 kJ/mol   
99+
604.50 kJ/mol   
99+

2nd Energy Level
1,756.00 kJ/mol   
24
1,128.00 kJ/mol   
99+

3rd Energy Level
2,653.30 kJ/mol   
40
1,997.00 kJ/mol   
99+

4th Energy Level
4,679.50 kJ/mol   
24
3,242.00 kJ/mol   
99+

5th Energy Level
5,721.60 kJ/mol   
27
Not Available   

Electrochemical Equivalent
Not Available   
1.77 g/amp-hr   
39

Electron Work Function
Not Available   
Not Available   

Other Chemical Properties
Chemical Stability, Ionization   
Ionization, Radioactive Isotopes, Radioactivity, Solubility   

Atomic Properties

Atomic Number
115   
3
93   
25

Electron Configuration
[Rn] 5f14 6d10 7s2 7p3   
[Rn] 5f4 6d1 7s2   

Crystal Structure
Not Known   
Orthorhombic (ORTH)   

Crystal Lattice
Unknown-Crystal-Structure-of-Ununpentium.jpg#100   
ORTH-Crystal-Structure-of-Neptunium.jpg#100   

Atom
  
  

Number of Protons
115   
3
93   
25

Number of Neutrons
159   
5
144   
14

Number of Electrons
115   
3
93   
25

Radius of an Atom
  
  

Atomic Radius
Not Available   
155.00 pm   
30

Covalent Radius
Not Available   
190.00 pm   
18

Van der Waals Radius
Not Available   
221.00 pm   
22

Atomic Weight
289.00 amu   
3
237.00 amu   
22

Atomic Volume
Not Available   
11.62 cm3/mol   
99+

Adjacent Atomic Numbers
  
  

Previous Element
Flerovium
  
Uranium
  

Next Element
Plutonium
  

Valence Electron Potential
Not Available   
96.00 (-eV)   
9

Lattice Constant
Not Available   
666.30 pm   
3

Lattice Angles
NA   
π/2, π/2, π/2   

Lattice C/A Ratio
Not Available   
Not Available   

Mechanical Properties

Density
  
  

Density At Room Temperature
4.51 g/cm3   
99+
19.38 g/cm3   
14

Tensile Strength
Not Available   
125.00 MPa   
14

Viscosity
Not Available   
Not Available   

Vapor Pressure
  
  

Vapor Pressure at 2000 K
Not Available   
0.11 (Pa)   
17

Elasticity properties
  
  

Poisson Ratio
Not Available   
Not Available   

Other Mechanical Properties
Unknown   
Ductile   

Magnetic Properties

Magnetic Characteristics
  
  

Specific Gravity
Not Available   
20.25   
6

Magnetic Ordering
Paramagnetic   
Paramagnetic   

Electrical Properties
  
  

Electrical Property
Unknown   
Conductor   

Resistivity
Not Available   
1.22 nΩ·m   
99+

Electrical Conductivity
Not Available   
0.01 106/cm Ω   
99+

Thermal Properties

Specific Heat
Not Available   
0.12 J/(kg K)   
40

Molar Heat Capacity
Not Available   
29.46 J/mol·K   
8

Thermal Conductivity
Not Available   
6.30 W/m·K   
99+

Critical Temperature
Not Available   
Not Available   

Thermal Expansion
Not Available   
Not Available   

Enthalpy
  
  

Enthalpy of Fusion
Not Available   
3.20 kJ/mol   
99+

Standard Molar Entropy
Not Available   
Not Available   

Summary >>
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