「Neptunium」調整以後𣍐蜀樣其地方
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Sĭng hiĕk: '''Neptunium''' sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só. Nguòng-cṳ̄ sê̤ṳ-só sê 93, huá-hŏk hù-hô̤ sê Np. ==Huá-h... |
無編輯摘要 |
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Dâ̤ 1 hòng:
{{Infobox element
|number=93
|symbol=Np
|name=Neptuni
|enname=neptunium
|laname=neptunium
|left=[[Iù (gĭng-sṳ̆k)|urani]]
|right=[[plutonium|Plutoni]]
|above=[[promethium|Promethi]]
|below=(Uqp)
|series=actinium-hiê
|period=7
|block=f
|group=n/a
|image name=neptunium2.jpg
|appearance=silvery metallic
|atomic mass=(237)
|electron configuration=[[[radon|Rn]]] 5f<sup>4</sup> 6d<sup>1</sup> 7s<sup>2</sup>
|electrons per shell=2, 8, 18, 32, 22, 9, 2
|phase=gó-tā̤
|density gpcm3nrt=alpha: 20.45
|density gpcm3nrt ref=<ref name="criticality">{{cite web|url=http://typhoon.jaea.go.jp/icnc2003/Proceeding/paper/2.14_107.pdf|title=Criticality of a <sup>237</sup>Np Sphere
|first1=Rene G.|last1=Sanchez
|first2=David J.|last2=Loaiza
|first3=Robert H.|last3=Kimpland
|first4=David K.|last4=Hayes
|first5=Charlene C.|last5=Cappiello
|first6=William L.|last6=Myers
|first7=Peter J.|last7=Jaegers
|first8=Steven D.|last8=Clement
|first9=Kenneth B.|last9=Butterfield
|publisher=Japanese Atomic Energy Agency
|accessdate=2014-08-06
}}</ref>
|density gpcm3nrt 2=accepted standard value: 19.38
|melting point K=912±3
|melting point C=639±3
|melting point F=1182±5
|boiling point K=4447
|boiling point C=4174
|boiling point F=7545
|boiling point comment=''(extrapolated)''
|heat fusion=5.19
|heat vaporization=336
|heat capacity=29.46
|vapor pressure 1=2194
|vapor pressure 10=2437
|vapor pressure 100=
|vapor pressure 1 k=
|vapor pressure 10 k=
|vapor pressure 100 k=
|vapor pressure comment=
|crystal structure=orthorhombic
|oxidation states=7, 6, '''5''', 4, 3, 2
|oxidation states comment=(an [[amphoterism|amphoteric]] oxide)
|electronegativity=1.36
|number of ionization energies=1
|ionization energy 1=604.5
|atomic radius=155
|covalent radius=190±1
|magnetic ordering=[[paramagnetic]]
|magnetic ordering ref=<ref>[http://www-d0.fnal.gov/hardware/cal/lvps_info/engineering/elementmagn.pdf Magnetic susceptibility of the elements and inorganic compounds], in Handbook of Chemistry and Physics 81st edition, CRC press.</ref>
|electrical resistivity unit prefix=µ
|electrical resistivity=1.220
|electrical resistivity comment=(at 22 °C)
|thermal conductivity=6.3
|CAS number=7439-99-8
|isotopes=
{{infobox element/isotopes decay2 | mn=235 | sym=Np
| na=[[synthetic radioisotope|syn]] | hl=[[1 E7 s|396.1 d]]
| dm1=[[alpha emission|α]] | de1=5.192 | link1=protactinium-231 | pn1=231 | ps1=Pa
| dm2=[[electron capture|ε]] | de2=0.124 | link2=uranium-235 | pn2=235 | ps2=U}}
{{infobox element/isotopes decay3 | mn=236 | sym=Np
| na=syn | hl=[[1 E12 s|1.54×10<sup>5</sup> y]]
| dm1=ε | de1=0.940 | link1=uranium-236 | pn1=236 | ps1=U
| dm2=[[beta emission|β<sup>−</sup>]] | de2=0.940 | link2=plutonium-236 | pn2=236 | ps2=Pu
| dm3=α | de3=5.020 | link3=protactinium-232 | pn3=232 | ps3=Pa}}
{{infobox element/isotopes decay | mn=237 | sym=Np
| na=[[trace radioisotope|trace]] | hl=2.144×10<sup>6</sup> y
| dm=α | de=4.959 | link1=protactinium-233 | pn=233 | ps=Pa}}
{{infobox element/isotopes decay | mn=239 | sym=Np
| na=trace | hl=2.356 d
| dm=β<sup>−</sup> | de=0.218 | link1=plutonium-239 | pn=239 | ps=Pu}}
|isotopes comment=
|naming=after planet [[Neptune]], itself named after Roman god of the sea [[Neptune (mythology)|Neptune]]
|discovered by=[[Edwin McMillan]] and [[Philip H. Abelson]]
|discovery date=1940
}}
'''Neptunium''' sê siŏh cṳ̄ng [[gĭng-sṳ̆k]], iâ sê siŏh cṳ̄ng [[huá-hŏk nguòng-só]]. [[Nguòng-cṳ̄ sê̤ṳ-só]] sê 93, huá-hŏk hù-hô̤ sê Np.
==Huá-hŏk séng-cék==
第5行 ⟶ 第94行：
==Cié-chṳ̄==
==Chăng-kō̤ cṳ̆-lâiu==
{{reflist}}
{{Ciŭ-gĭ-biēu}}
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