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New page: {{Element | name=Neptunium | symbol=Np | anumber=93 | amass=237 amu | state=Solid | class=Metallic | cstructure=Orthorhombic | color=silvery | date=1940 | discname=Edwin M. McMillan, Phili...
{{Element | name=Neptunium | symbol=Np | anumber=93 | amass=237 amu | state=Solid | class=Metallic | cstructure=Orthorhombic | color=silvery | date=1940 | discname=Edwin M. McMillan, Philip H. Abelson | origname=Named after the planet Neptune. | uses=Used in neutron detection instruments. | obtained=Produced by bombarding [[uranium]] with slow neutrons. Although it is present in uranium rich ores, it is not extracted from this source. Not found outside nuclear or research facilities.}}