softschools.com

Neptunium Element

Neptunium
Atomic Number : 93
Atomic Weight : 237
Boiling Point : 3902oC
Melting Point : 644oC
Phase at Room Temperature: : Solid
Element Classification: : Metal
Period Number: : 7
Discovered Year: : 1940
Discovered by: : Edwin McMillan and Philip Abelson .

Periodic Table
Periodic Table Elements
Periodic Table Facts


Educational Videos