Shaw,+Ian

** __ @http://www.periodictable.com/Elements/093/index.html __ **
 * __Neptunium, Np __**

There are 93 protons and electrons and 144 neutrons.
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f14 5s2 5p6 5d10 5f4 6s2 6p6 6d1 7s2

=Neptunium costs approximately $280 per gram.=

@http://education.jlab.org/itselemental/ele093.html
Education.jlab.org http://education.jlab.org/itselemental/ele093.html 11/13/13