Atomic number: 93
Year discovered: 1940
Discovered by: Edwin M. McMillan (born 1907), American physicist, and Philip Hauge Abelson (born 1913) at the University of California in Berkeley.
- Neptunium was the first synthetic transuranium element of the actinide series.
- It was discovered by McMillan and Abelson in 1940 at Berkeley, California.
- They bombarded uranium with neutrons produced from a cyclotron.
- The metal is about as malleable as uranium made under the same conditions.
Name in other languages:
Information about other elements may be seen at this Chemical Elements List.
A special unit about words that include chemo-, chem- may be seen here.