Periodic Table
|
| Neptunium |
|
|
| Symbol: |
Np
|
| Atomic
Number: |
93
|
| Atomicmass: |
(237) g.mol -1
|
| Electronegative
(According to Pauling): |
1.3
|
| Density: |
20.25 g.cm-3 at 20°C
|
| Melting
Point: |
640 °C
|
| Boiling
Point: |
3902 °C
|
| Venderwaals
Radius: |
unknown
|
| Ionic
Radius: |
unknown
|
| Isotopes: |
8
|
| Electronic
Shell: |
|
|
| Energy
Of First Ionization: |
|
|
No of Protons |
| Standard
Potential: |
|
|
Electron
in Full Shell |
| Discoverd
By: |
Discovered by McMillan in 1940 |
|
Electron
in Partial Shell |
| |
|
|
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| |
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| |
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