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تم إزالة 2٬593 بايت ، ‏ قبل 5 سنوات
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{{معلومات نبتونيوم}}
{{Elementbox_header | number=93 | symbol=Np | name=نبتونيوم | left=[[بلوتونيوم]] | right=[[يورانيوم]] | above=[[بروميثيوم|Pm]] | below=(Uqt) | color1=#ff99cc | color2=black }}
{{Elementbox_series | [[أكتينيدات]]}}
{{Elementbox_periodblock | period=7 | block=f }}
{{Elementbox_appearance | فضي معدني}}
{{Elementbox_atomicmass_gpm | [[1 E-25 kg|(237)]] }}
{{Elementbox_econfig | &#91;[[radon|Rn]]&#93; 5f<sup>4</sup> 6d<sup>1</sup> 7s<sup>2</sup> }}
{{Elementbox_epershell | 2, 8, 18, 32, 22, 9, 2 }}
{{Elementbox_section_physicalprop | color1=#ff99cc | color2=black }}
{{Elementbox_phase | [[solid]] }}
{{Elementbox_density_gpcm3nrt | 20.45 [http://typhoon.jaea.go.jp/icnc2003/Proceeding/paper/2.14_107.pdf] }}
{{Elementbox_meltingpoint | k=910 | c=637 | f=1179 }}
{{Elementbox_boilingpoint | k=4273 | c=4000 | f=7232 }}
{{Elementbox_heatfusion_kjpmol | 3.20 }}
{{Elementbox_heatvaporiz_kjpmol | 336 }}
{{Elementbox_heatcapacity_jpmolkat25 | 29.46 }}
{{Elementbox_vaporpressure_katpa | 2194 | 2437 | &nbsp; | &nbsp; | &nbsp; | &nbsp; | comment= }}
{{Elementbox_section_atomicprop | color1=#ff99cc | color2=black }}
{{Elementbox_crystalstruct | 3 forms: orthorhombic,<br /> tetragonal and cubic }}
{{Elementbox_oxistates | 6, '''5''', 4, 3<br />([[amphoteric]] oxide) }}
{{Elementbox_electroneg_pauling | 1.36 }}
{{Elementbox_ionizationenergies1 | 604.5 }}
{{Elementbox_atomicradius_pm | [[1 E-10 m|175]] }}
{{Elementbox_section_miscellaneous | color1=#ff99cc | color2=black }}
{{Elementbox_magnetic | ? }}
{{Elementbox_eresist_ohmm | (22&nbsp;°C) 1.220 µ}}
{{Elementbox_thermalcond_wpmkat300k | 6.3 }}
{{Elementbox_cas_number | 7439-99-8 }}
{{Elementbox_isotopes_begin | color1=#ff99cc | color2=black }}
{{Elementbox_isotopes_decay2 | mn=235 | sym=Np
| na=[[synthetic radioisotope|syn]] | hl=[[1 E7 s|396.1 d]]
| dm1=[[alpha emission|α]] | de1=5.192 | pn1=231 | ps1=[[protactinium|Pa]]
| dm2=[[electron capture|ε]] | de2=0.124 | pn2=235 | ps2=[[uranium|U]] }}
{{Elementbox_isotopes_decay3 | mn=236 | sym=Np
| na=[[synthetic radioisotope|syn]] | hl=[[1 E12 s|1.54×10<sup>5</sup> y]]
| dm1=ε | de1=0.940 | pn1=236 | ps1=[[uranium|U]]
| dm2=[[beta emission|β<sup>-</sup>]] | de2=0.940 | pn2=236 | ps2=[[plutonium|Pu]]
| dm3=α | de3=5.020 | pn3=232 | ps3=[[protactinium|Pa]] }}
{{Elementbox_isotopes_decay | mn=237 | sym=Np
| na=[[synthetic radioisotope|syn]] | hl=2.144×10<sup>6</sup> [[year|y]]
| dm=[[spontaneous fission|SF]] & α | de=4.959 | pn=233 | ps=[[protactinium|Pa]] }}
{{Elementbox_isotopes_end}}
{{Elementbox_footer | color1=#ff99cc | color2=black }}
 
'''النبتونيوم''' [[عنصر كيميائي]] له الرمز '''Np''' و[[العدد الذري]] 93 في [[الجدول الدوري]] وهو من [[الأكتينيدات]].