 | Neptunium | Atomic Number: 93 |
- Overview
Property Value Units 237
20.45
- Thermal Properties
Thermal Properties
Property Value Units 640°C
3902°C
The critical pressure has not been determined for Neptunium
The critical temperature has not been determined for Neptunium
10 kJ/mol
335 kJ/mol
NA J/kg·K
6 W/m·K
- Electon Configuration
[Rn] 5f4 6d1 7s2
K L M N O P Q 2 8 18 32 22 9 2 Level S Orbital P Orbital D Orbital F Orbital Level 1 Level 2 - History
Year Discovered
1940
- Isotopes
Isotope Common Name Symbol Mass Status Abundance Half-life Decay mode Decay Energy Nuclear Spin Magnetic Moment Isotopic mass data for stable isotopes is from:
G. Audi, A.H. Wapstra in Nuclear Physics A, 1993, 565, 1-65
and
G. Audi, A.H.Wapstra in Nuclear Physics A, 1995, 595 409-480.Natural abundance data is from:
K.J.R. Rosman, P.D.P. Taylor in Pure Appplied Chemistry, 1999, 71, 1593-1607.- Occurance
In the Universe 0% In the Sun 0% In Meteorites 0% In the Earth's Crust 0% In Seawater 0% In the Human Body 0% - Models
Pictures, videos and 3D models of the element
Title Description