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{{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.}}

{{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.}}

'''Neptunium''' ''(nep-TOO-nee-em)'' it a primarily synthetic [[element]] named after the planet Neptune (named after the Roman god of the sea), the next planet out from the Sun after Uranus.  It was first produced by Edwin M. McMillian and Philip H. Abelson, in 1940.  There are 25 known radioactive isotopes of this element. <ref>http://periodic.lanl.gov/93.shtml</ref>

'''Neptunium''' ''(nep-TOO-nee-em)'' it a primarily synthetic [[element]] named after the planet Neptune (named after the Roman god of the sea), the next planet out from the Sun after Uranus.  It was first produced by Edwin M. McMillian and Philip H. Abelson, in 1940.  There are 25 known radioactive isotopes of this element.<ref>http://periodic.lanl.gov/93.shtml</ref>

==Uses==

==Uses==

Neptunium is used mainly for research purposes, since it does not have many commercial applications.  It is sometimes used for spacecraft generators and terrestrial navigation beacons, as well as neutron detection equipment. <ref>http://www.chemicool.com/elements/neptunium.html</ref>

Neptunium is used mainly for research purposes, since it does not have many commercial applications.  It is sometimes used for spacecraft generators and terrestrial navigation beacons, as well as neutron detection equipment.<ref>http://www.chemicool.com/elements/neptunium.html</ref>

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[[category:Elements]]

{{Periodic table}}

[[Category:Elements]]