Neptunium
| Use attributes for filter ! | |
| Symbol | Np |
|---|---|
| Electron configuration | [Rn] 5f46d17s2 |
| Atomic number | 93 |
| Atomic mass | 237. 0482 u |
| Discoverers | Edwin McMillan |
| Philip Abelson | |
| Did you know | Neptunium was the first synthetic transuranium element (elements after uranium) of the actinide series to be discovered. |
| Date of Reg. | |
| Date of Upd. | |
| ID | 776570 |
About Neptunium
Neptunium is a chemical element with the symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element. Its position in the periodic table just after uranium, named after the planet Uranus, led to it being named after Neptune, the next planet beyond Uranus.
Neptunium Photos
