-- card: 38432 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 14320
-- name: Np


-- part contents for background part 14
----- text -----
Np

-- part contents for background part 22
----- text -----
Neptunium

-- part contents for background part 15
----- text -----
93

-- part contents for background part 17
----- text -----
237.0482

-- part contents for background part 18
----- text -----
20.25

-- part contents for background part 19
----- text -----
640

-- part contents for background part 20
----- text -----
3902

-- part contents for background part 21
----- text -----
+3,+4,+5,+6

-- part contents for background part 16
----- text -----
(Planet Neptune) Synthesized by McMillan and Abelson in 1940 at the Berkely, California by bombarding uranium with neutrons. It is the first synthetic transuranium (elements after uranium) element discovered. Np-237 is a by-product of nuclear reactors. Trace amounts found in uranium ores.


-- part contents for background part 23
----- text -----
rare earth metal, radioactive, silvery, reactive, atleast 3 allotropic forms, 13 isotopes

-- part contents for background part 24
----- text -----
used as a component in neutron detection instruments

-- part contents for background part 26
----- text -----
Electron Configuration:

1s  2s  2p  3s  3p  3d  4s  4p  4d  4f  5s  5p  5d  5f  6s  6p  6d  6f  7s 
 2   2    6    2    6   10   2   6  10  14  2    6  10    4    2   6   1         2