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Template:Infobox neptunium - Revision history
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>Nucleus hydro elemon: // Edit via Wikiplus
2024-09-03T10:44:51Z
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<p><b>New page</b></p><div>{{Infobox element<br />
|symbol =Np<br />
|Z =93<br />
|number =93<br />
|name =neptunium<br />
|abundance=<br />
|abundance in earth's crust=<br />
|abundance in oceans=<br />
|abundance in solar system=<br />
|left=[[uranium]]<br />
|right=[[plutonium]]<br />
|above=[[promethium|Pm]]<br />
|below=—<br />
|image name={{main other|1g of neptunium metal.jpg|NonFreeImageRemoved.svg}}<br />
|appearance=silvery metallic<br />
|electrons per shell=2, 8, 18, 32, 22, 9, 2<br />
|phase=<br />
|density=20.48&nbsp;g/cm<sup>3</sup> (<sup>237</sup>Np)<ref name="Arblaster 2018" /><br />
|density conditions=(at&nbsp;20°&nbsp;C)<br />
|density gpcm3nrt=<br />
|melting point K=912±3<br />
|melting point C=639±3<br />
|melting point F=1182±5<br />
|boiling point K=4447<br />
|boiling point C=4174<br />
|boiling point F=7545<br />
|boiling point comment=''(extrapolated)''<br />
|heat fusion=5.19<br />
|heat vaporization=336<br />
|heat capacity=29.46<br />
|vapor pressure 1=2194<br />
|vapor pressure 10=2437<br />
|vapor pressure 100=<br />
|vapor pressure 1 k=<br />
|vapor pressure 10 k=<br />
|vapor pressure 100 k=<br />
|vapor pressure comment=<br />
|crystal structure=orthorhombic<br />
|crystal structure Pearson symbol=oP8<br />
|lattice constants=''a''&nbsp;=&nbsp;472.3&nbsp;pm<br />''b''&nbsp;=&nbsp;488.7&nbsp;pm<br />''c''&nbsp;=&nbsp;666.3&nbsp;pm (at&nbsp;20&nbsp;°C)<ref name="Arblaster 2018">{{cite book |last=Arblaster |first= John W. |title=Selected Values of the Crystallographic Properties of Elements |publisher=ASM International |publication-place=Materials Park, Ohio |date=2018 |isbn=978-1-62708-155-9}}</ref><br />
|electronegativity=1.36<br />
|number of ionization energies=1<br />
|ionization energy 1=604.5<br />
|atomic radius=155<br />
|covalent radius=190±1<br />
|magnetic ordering=[[paramagnetic]]<br />
|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><br />
|electrical resistivity unit prefix=µ<br />
|electrical resistivity=1.220<br />
|electrical resistivity comment=(at&nbsp;22&nbsp;°C)<br />
|thermal conductivity=6.3<br />
|CAS number=7439-99-8<br />
|magnetic susceptibility=<br />
|magnetic susceptibility ref=<br />
|naming=after planet [[Neptune]], itself named after Roman god of the sea [[Neptune (mythology)|Neptune]]<br />
|discovered by=[[Edwin McMillan]] and [[Philip H. Abelson]]<br />
|discovery date=1940<br />
|QID=Q1105<br />
}}<!--<br />
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{{Infobox element/element navigation|symbol=Np}}<br />
{{Template reference list}}<br />
{{documentation|1=Template:Infobox element/doc}}<br />
</noinclude></div>
>Nucleus hydro elemon