โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Neptunium
  • ๐Ÿ‡จ๐Ÿ‡ณ ้Œผ
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Neptunium
  • ๐Ÿ‡ซ๐Ÿ‡ท Neptunium
  • ๐Ÿ‡ฉ๐Ÿ‡ช Neptunium
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ื ืคื˜ื•ื ื™ื•ื
  • ๐Ÿ‡ฎ๐Ÿ‡น Nettunio
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใƒใƒ—ใƒ„ใƒ‹ใ‚ฆใƒ 
  • ๐Ÿ‡ต๐Ÿ‡น Neptúnio
  • ๐Ÿ‡ท๐Ÿ‡บ ะะตะฟั‚ัƒะฝะธะน
  • ๐Ÿ‡ช๐Ÿ‡ธ Neptunio
  • ๐Ÿ‡ธ๐Ÿ‡ช Neptunium

Neptunium: the essentials

Neptunium atoms have 93 electrons and the shell structure is 2.8.18.32.22.9.2. The ground state electronic configuration of neutral neptunium is [Rn].5f4.6d1.7s2 and the term symbol of neptunium is 6L11/2.

Neptunium: description  

Neptunium is a radioactive rare earth metal and has at least 3 allotropic forms. It is named for the planet Neptune. Np-237 is a by-product from nuclear reactors.

Neptunium: physical properties

More physical properties...

Neptunium: heat properties

More thermochemical properties...

Neptunium: atom sizes

More atomc size properties...

Neptunium: electronegativities

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Neptunium: orbital properties

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Neptunium: abundances

More geological data...

Neptunium: crystal structure

Np crystal structure
The solid state structure of neptunium is: bcc (body-centred cubic).

More crystallographic data...

Neptunium: biological data

Neptunium has no biological role.

More biological data...

Neptunium: uses

Uses...

Neptunium: reactions

Reactions of neptunium as the element with air, water, halogens, acids, and bases where known.

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Neptunium: binary compounds

Binary compounds with halogens (known as halides), oxygen (known as oxides), hydrogen (known as hydrides), and other compounds of neptunium where known.

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Neptunium: compound properties

Bond strengths; lattice energies of neptunium halides, hydrides, oxides (where known); and reduction potentials where known.

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Neptunium: history

Neptunium was discovered by Edwin M. McMillan and P. H. Abelson in 1940 at USA. Origin of name: named after "the planet Neptune".

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Neptunium: isotopes

Isotope abundances of neptunium
Isotope abundances of neptunium with the most intense signal set to 100%.

More isotope and NMR data...

Neptunium: isolation

Isolation: coming soon!